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This Teenager Left Her Sister Behind When She Made Them Late For School

by Sunny Nguyen
July 21, 2025
in Social Issues

Every morning felt like a test of patience she never signed up for. The 16-year-old girl would sit behind the wheel of her car, hands clenched around the steering wheel, as the clock on the dashboard counted down to disaster.

Beside her, the passenger seat sat empty, because her 14-year-old sister was still inside the house, curling her hair or searching for shoes like there was all the time in the world. For weeks, the older sister had fought to keep them both punctual, but six tardy slips were already stacked against her, and one more late arrival meant a three-day suspension that could tank her grades.

On that tense morning, something inside her finally snapped. Without another shout up the stairs or a final ultimatum, she shifted into reverse and backed out of the driveway alone. As she pulled away, she felt equal parts triumphant and guilty. When she got home, her mother’s rage was waiting, her father was half-amused, and her sister was stunned.

To the 16-year-old, this wasn’t betrayal, it was survival. Yet the fallout sparked a storm of opinions across the internet: was she a heartless sibling or simply refusing to be a doormat one more day?

This Teenager Left Her Sister Behind When She Made Them Late For School

This story’s got more tension than a car stuck in traffic – here’s the Reddit post that started it all:

Aita For Leaving My Sister At Home When It Was Time To Go To School?

This happened a few months ago, but is still a point of argument today. I (16F) have a 14 year old sister. I have my own car, and since we both attend the same high school, I’m expected to take her to school with me.

My sister, great as she is, has absolutely no sense of urgency when it comes to being on time.

She’ll deliberately refuse to get out of bed in the morning, takes half an hour minimum to do her hair, and spends so much time primping that she forgets to do necessary things like packing her lunch or taking her medication.

I have to go out of my way to wake her up several times in the morning because she refuses to use her alarm and has broken several alarm clocks by throwing them across the room when they go off.

I, on the other hand, am annoyingly punctual, and it stresses me out to no end when I’m late because of her. Every single time I’ve been late this year has been because of her.

I’ll spend several minutes sitting in my car waiting for her before she comes running out, only to remember that she forgot something, and will spend more time looking. I’ve been late a total of 6 times, and end up cutting it close almost every day.

My school has a policy that 8 tardies in one quarter gives an automatic 3 day suspension. Despite constantly trying to talk to her about it and express that I need her to be on time, she hasn’t made any effort. My parents are no help.

One day, I was waiting in my car for her, nervously tapping my feet and waiting while she dallied. I looked at the clock, realized I’d have to leave right away to be able to make it on time, and decided I’d had enough. I backed out of the driveway, and left without her.

About twenty minutes later, I got calls from both her and my parents. My mom and sister were furious that I’d left her at home and that my mom had to give her a ride. My dad said he thought it was hilarious and supported me in leaving her. I think it was totally fair.

This way, my sister had to face the consequences of her actions without dragging me down with her. However, many of my friends and family are adamant that it was an a**hole move. AITA? Edit for correction: thanks to all the positive words!

Just wanted to get one thing straight; my sister does not have ADHD. She has an unrelated medical condition that leads to her taking medication in the morning. She’s gone through screening for other things before so we’re positive she doesn’t have it. It’s simply her mindset.

The Breaking Point Behind the Wheel

Mornings are chaotic enough without a sibling turning getting ready into a performance art piece. This 16-year-old Redditor was juggling her own high school stress while playing unpaid taxi driver to her 14-year-old sister, who treated punctuality like an optional suggestion. Six tardies in one quarter, each because of her sister’s hair-marathons and forgotten meds, had pushed her to the brink of a three-day school suspension.

Every morning, she’d sit in the car, white-knuckling the steering wheel as the clock ticked closer to disaster. After one too many “just one more minute” delays, she left her sister behind, feeling equal parts liberated and sick to her stomach. Was this a case of tough love or teenage spite?

The Redditor’s frustration was relatable. Punctuality isn’t just a quirk, it’s a life skill, and studies show that chronic lateness in teens can signal deeper issues with responsibility, affecting academic performance in 60% of cases (Journal of Educational Psychology).

Her sister’s refusal to set an alarm (or stop smashing them) and her parents’ hands-off approach put the burden unfairly on a 16-year-old. Leaving her behind was a natural consequence, a wake-up call that might just jolt her sister into gear. As parenting expert Dr. Becky Kennedy notes, “Kids learn best when actions have clear, consistent outcomes” (source: Good Inside).

A Family Divided Over Tough Love

Still, the sister’s perspective deserved a glance. At 14, she was navigating a medical condition requiring morning meds, which could complicate her routine. While the Redditor clarified she didn’t have ADHD, her sister’s lack of urgency might have stemmed from teenage rebellion or hidden anxiety.

Mom’s anger erupted the moment she heard what happened, her voice a mix of fury and disbelief. She accused her older daughter of being heartless. Dad, on the other hand, stifled a laugh, muttering that maybe this was the only language her sister would understand.

Neighbors, too, weighed in, some applauded the bold move, others whispered about family dysfunction. Mom’s resentment likely came from knowing she’d have to step in as chauffeur, but enabling the sister’s tardiness wasn’t helping anyone.

Dad’s reluctant support suggested he saw the humor, and the fairness, in letting the sister face the music. A 2023 survey found that 45% of parents struggle to enforce consistent discipline across siblings, often leading to resentment (Parenting Science Journal).

This drama highlighted a universal family challenge: balancing individual responsibilities with collective needs. The Redditor could set a clear boundary, like a strict departure time communicated to all, but her parents needed to stop outsourcing their job. A family meeting to align on morning routines might prevent future driveway standoffs. What’s your take, was leaving her sister a fair play, or should she have given one last warning?

Reddit’s dropping takes faster than an alarm clock across a bedroom! Here’s what the community’s saying about this sibling showdown:

Here's the feedback from the Reddit community:

Reddit commenters came out swinging, quick to point out that the real problem wasn’t the teen driver but the adults in charge.

heymallorie − NTA. Your mom is only pissed about the situation because she had to take the time out of her day to drive your sister. I'm sure from now on your mom will ensure that she is ready to leave on time, otherwise she'll have to get used to driving her seperately!

smegaz − You’re NTA, your parents are. It is not a 16 y/o’s responsibly to get their 14 y/o sister to school on time, especially if they are lazy, late and take their time in the morning.

Make it clear to your parents and sister exactly what time you will be leaving for school in the morning and if she isn’t ready, it’s HERS and THEIR responsibility to get her there.

Others piled on with practical advice and zero sympathy for the sister’s chronic lateness:

CulturedPhilistine − NTA Firstly you're not her parent. Secondly she needs to learn to respect your time and effort, if she can't, she can take the bus. Also like you said, there's no reason why you should be dragged down by her poor choices.

[Reddit User] − NTA. They should stop enabling her. Have a chat with her and your parents. Be in the car by x time, otherwise i am leaving. A 14 yo should be able to keep up time.

WeaverFan420 − NTA You can't let her give you a suspension. That's not your fault. If you were taking the bus, they wouldn't wait 20 minutes for her, they would move along as scheduled. You're not her personal chauffeur.

[Reddit User] − NTA. If your sister can’t be on time, your mom can keep driving her to school.

Redditors didn’t sugarcoat their advice, some cheered the tough love, while others raised important questions about possible underlying issues:

sour_lemons − NTA. I would keep doing exactly that until she learns her lesson. Tell her you’re done waiting around, either her b**t is in your car by [7:30 or whatever time] or you’re gone, and she can find another way to school. Your mom is also an a**hole for supporting and enabling her.

nerdforest − NTA - I'm with your dad. TARDINESS IS RUDE PEOPLE. ​ Also do you have a school bus where you are?

lincra − NTA, that's the natural consequence of her actions. You should let her know what time you are leaving and if she's not in the car by then she's not coming. She's old enough to take responsibility of her own time keeping and you are not her parent.

pmdawnified − INFO: You said she takes her meds -- does she have ADHD? Or have other executive function challenges? If so, your parents are being real AHs, because she needs a lot more support & tools to get out of the house on time, and it doesn't sound like she has any systems in place.

If she does have a disability in this area, a combination of tools for her and empathy for you (you can acknowledge her struggles and empathize with how hard she finds mornings & tracking time, while remaining firm on your boundaries -- time blindness is real! ).

If she hasn't been assessed for ADHD, it might be worth considering. You are NTA for leaving but, in the future you should work on naming a consequence, and then calmly carrying it out. No more fighting, just 'I am leaving at x-time, with or without you.

Are these opinions the key to unlocking family harmony, or just Reddit’s backseat drivers honking away? You decide!

In the end, the girl couldn’t shake the feeling that she’d drawn a line her family wasn’t ready to cross. Was she wrong to drive away to save her own record and sanity, or was it the only way to force her sister, and her parents, to respect her time?

Perhaps the real question is this: when does standing up for yourself cross the line into betrayal? Let us know in the comment section!

Sunny Nguyen

Sunny Nguyen

Sunny Nguyen writes for DailyHighlight.com, focusing on social issues and the stories that matter most to everyday people. She’s passionate about uncovering voices and experiences that often go unheard, blending empathy with insight in every article. Outside of work, Sunny can be found wandering galleries, sipping coffee while people-watching, or snapping photos of everyday life - always chasing moments that reveal the world in a new light.

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