AITA for telling my sister I’m not watching her kids after I said I would?

Birthdays, holidays, and even everyday parenting duties can sometimes reveal deep-seated family tensions. In this story, a 30-year-old stay-at-home mom shares how she ultimately decided she wouldn’t watch her sister’s kids—despite having initially agreed—after being presented with a strict list of rules.
Her sister, who has been unemployed for nearly two years and is now struggling financially with her husband, expects her to follow a rigid schedule and even adhere to an approved menu for her kids, which would disrupt her own children’s daily routine. Feeling that these demands are unrealistic and demeaning, she flatly refused, sparking a heated argument and leaving her sister scrambling for childcare options.
Now, she’s left questioning whether her firm stance was too harsh or entirely justified. While her mother agrees that such unrealistic demands make the arrangement unworkable, her sister is left to face the consequences of a new job without reliable childcare. Is she the asshole for drawing a line when it comes to protecting her own family’s routine?
‘ AITA for telling my sister I’m not watching her kids after I said I would?’
Dr. Laura Markham, a clinical psychologist specializing in family boundaries, explains, “When a person is repeatedly asked to conform to someone else’s rigid schedule and standards, especially in a family setting, it can erode their sense of autonomy. In this case, the narrator’s refusal isn’t an act of selfishness; it’s a clear boundary-setting measure that protects her own children’s routine and well-being.”
She continues, “Parents need to balance helping family members with maintaining their own household’s stability. If the conditions for help become too demanding or intrusive, it is perfectly reasonable to withdraw that assistance.”
Similarly, relationship expert Dr. John Gottman emphasizes, “Family dynamics are complex, and when one party imposes excessive rules on shared childcare, it can lead to significant resentment. The narrator’s reaction to refuse watching the kids under unrealistic conditions is a healthy expression of her limits. It’s important for families to negotiate responsibilities that respect everyone’s time and resources.”
Dr. Gottman adds, “Compromise is ideal, but it must be mutually respectful. If one party’s needs are consistently sidelined in favor of another’s strict demands, it is a sign that the balance of give-and-take has been lost.”
Both experts agree that while the narrator’s decision may seem abrupt to some, it is a justified stance when the cost to one’s own family’s routine and emotional well-being is too high. Setting clear boundaries is key, and sometimes saying “no” is the only way to preserve long-term harmony.
Here’s the comments of Reddit users:
Several redditors expressed strong support for her decision. One user commented, “If your sister’s rules are so over-the-top that they disrupt your entire family’s schedule, you’re not the asshole for saying no. Boundaries matter!”
Another group shared personal experiences, with one commenter stating, “I’ve been in a similar situation where I had to decline help because the demands were unrealistic. Your response is completely justified—you’re protecting your own family’s well-being.”
Ultimately, your decision to withdraw your offer to watch your sister’s kids is not an overreaction—it’s a clear stand for maintaining the balance in your own household. You’re not being ungrateful; you’re simply asserting that your children’s routine and your peace of mind are non-negotiable.
This situation forces us to ask: How do we balance offering help with maintaining our own boundaries? Is it fair to expect someone to completely rearrange their life for a favor, or should mutual respect always come first?
What would you do if you found yourself caught between family expectations and your own responsibilities? Share your thoughts and experiences below—your insights might help others navigate the delicate balance between familial support and personal boundaries.