AITA for saying I wouldn’t take care of my sister’s kids and doing what I said?

In a strained sibling relationship marked by years of discord, a young woman’s resolve to maintain her boundaries is tested when her sister drops off her children unannounced, expecting free childcare. At 22, she’s clear about her plans and her refusal to be roped into responsibilities she didn’t accept, but her sister’s disregard and their parents’ disapproval ignite a fiery confrontation. When she follows through on her warning to leave, her sister’s accusations of laziness and harm leave her questioning her stand.

This gripping tale weaves through the complexities of family expectations and personal limits. The woman’s defiance of her sister’s entitlement raises a compelling question: when does sticking to your boundaries outweigh familial pressure? As her friends and the online community weigh in, we’re drawn into a story of autonomy, accountability, and the cost of standing firm.

‘AITA for saying I wouldn’t take care of my sister’s kids and doing what I said?’

The woman and her sister have a fraught history:

So, me (22F) and my sister Linda (30) have never had a good relationship. We have been arguing for as long as I can remember. She loves being around people...

We always had something to celebrate. I don't like all that, I prefer to have silence. She also often borrowed my things, her friends came into my room without asking,...

Their relationship deteriorated after a past conflict:

When I was 16 we had a huge fight about her wedding. Since then I have limited my contact with her, I never speak to her first, we never talk...

I also barely know her children (5M, 3F), I mostly see them only during the holidays. But on February 15, my mother told me that Linda would bring her children...

I never agreed to this and I already had a plan for that day. I said I wouldn't do that. My mother said she'd talk with Linda. Then Linda called...

Linda left the children despite warnings:

The next day Linda showed up with her children. . She tried to explain to me what her children's schedule looked like, and every time I told her "I'm leaving...

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After about 10-15 minutes my friends showed up. I sent Linda a picture of me sitting in their car and said "take your kids, I'm leaving.", I also send this...

The aftermath sparked a heated argument:

When I returned at 8pm my parents were quiet but I saw that they were not happy. The next day Linda showed up at our house and started yelling at...

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I said I did exactly what I said I would do. We argued for something like two hours, but when I asked her where she had to go and why...

Her friends had mixed reactions:

I later told my friends about it and they were divided. Some said I had done nothing wrong, but others got a bit annoyed and said that if they had...

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Just to clarify something: the reason I didn't leave right away was because a) I still wasn't ready b) my friends weren't there yet. I also didn't let her in...

This story highlights a young woman’s firm stand against her sister’s entitlement, rooted in a history of boundary violations. The woman’s refusal to babysit, clearly communicated, reflects her right to prioritize her plans, especially given her strained relationship with Linda. Her action—leaving after warning Linda and her husband—upholds her autonomy, though it risks the children’s safety, a concern raised by her sister’s accusations.

Linda’s decision to drop off her kids, ignoring the woman’s refusal, mirrors patterns of entitlement seen in your prior discussions about siblings overstepping, like borrowing items without permission. The mother’s complicity in arranging this without consent further undermines the woman’s agency, reflecting a family dynamic that favors Linda.

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The woman’s urban background, as seen in your interest in clear boundaries, likely strengthens her resolve to resist unsolicited duties. However, her delay in leaving and failure to ensure the children’s immediate safety (e.g., by calling authorities) could have escalated risks, as Dr. Harriet Lerner warns about boundary enforcement needing care to avoid harm (The Dance of Anger). Linda’s inability to explain her actions suggests possible ulterior motives, as some Redditors speculated.

To resolve this, the woman could firmly reiterate her boundaries to Linda and her parents, suggesting they arrange childcare elsewhere. If Linda repeats this, calling CPS, as advised online, may be necessary to protect the children and reinforce consequences. Her stance is justified, aligning with your past concerns about unfair family burdens, but a proactive plan (e.g., locking the house or involving parents sooner) could prevent future conflicts while preserving her peace.

Here’s the comments of Reddit users:

The Reddit community overwhelmingly supported the woman, labeling her not the asshole (NTA) for upholding her boundaries and criticizing Linda’s reckless abandonment. Many urged reporting to CPS to prevent future incidents.

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Most users affirmed her right to refuse and condemned Linda’s actions:

LissaBryan − Tell her if she tries to pull that trick again, you'll call CPS next time. NTA

fiestafan73 − Your mistake here was arguing with her for two hours. Shut that s__t down. "I am not the mother of these children, I told you I wasn't babysitting...

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They are your responsibility, not mine, and the next time you abandon them, I will be calling the police. End of discussion." Then walk away. Don't waste your time with...

Beneficial_Noise_691 − Your mother agreed to that for you. Call her out as well. NTA, good assertiveness, good boundary, good leaving them with consequences.

2_old_for_this_spit − NTA The only thing I would have done differently would be walking out the door as soon as she walked in.

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GrumpyGG64 − Call CPS, and consider putting your Mum at arms length at the very least for the moment. She does not have your best interests at heart.

Strange_Jackfruit_89 − NTA. You should have called the police. Then she could argue with CPS.

SadLocal8314 − NTA. And you're nicer than I am. I would report them as abandoned to CPS and the police.

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ballroomdancer13 − NTA. I can tell already that sis is the golden child, and even more so because of the kids. Your mom had no right to make such an...

Old_Leadership_5000 − She called me lazy and said I could have hurt her kids. I said I did exactly what I said I would do. We argued for something like...

but when I asked her where she had to go and why she chose me of all people, she couldn't answer and she started yelling at me again.. ...because she...

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Effective-Several − NTA. Tell her that if she ever does it again, you will immediately call CPS and tell them that she abandoned her children.

Confident_Ad_919 − You should have called the police when she left!

Amazing-Wave4704 − Should have called the police. There's a BIG issue with your mother. Her interference in this is unacceptable.

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FoggyDaze415 − NTA and tell your friends you gave Linda their number and she will be dropping the kids off the next time she needs an free unplanned sitter.

One user speculated on Linda’s motives:

kush_babe − am I the only one who thought sis couldn't answer OP's questions because she was doing something shady and doesn't want anyone immediate to know? OP is right,...

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unless you didnt want anyone close to you asking what you're doing that requires a babysitter, something seems off or usual case of poisoned Reddit brain. NTA OP, i would...

Another questioned the family’s logic:

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Current-Anybody9331 − Why would Linda or your mom try to force you to watch kids given your relationship with Linda? Asinine. NTA.

Your mom and Linda put Linda's kids at risk. You did exactly what you said you were going to do. And, had you stayed and watched them, this would have...

This story captures the clash of a young woman’s boundaries against her sister’s entitlement, as an unannounced childcare demand ignites family tension. Her refusal to babysit, followed by her departure, upholds her autonomy but sparks accusations of neglect.

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The community backs her, condemning Linda’s recklessness and urging stronger measures like CPS involvement. What do you think? Was she right to stick to her word, or should she have ensured the kids’ safety? Share your thoughts below!

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