The OP’s father later told him his job was more important than the OP’s, that the OP should enjoy being a big brother, and pressured him to call out. When Saturday arrived, Heather insisted the OP watch the children starting at 8 AM for her 9 AM appointment. Instead, the OP left early for work, skipping breakfast at home. Upon returning at 3 PM, he faced yelling from Heather and later a lecture from his father about missing the appointment, but the OP remains resolute in his decision and feels no regret.

This happened Saturday. I (17m) was scheduled to work. On Thursday Heather (dad’s wife) told me I needed to call out Saturday because she had a doctors appointment and someone had to babysit my half siblings (3 of them 3 and under).
I told her I wasn’t calling out and she’d need to find someone else. My dad works Saturday’s and he told me his job was more important than mine and I didn’t need to be so locked in on work and school that I ignore my ‘family’ anyway so I should call out of work and enjoy the day of being a big brother.
I told him I wasn’t doing that and I’m going to work whether they like it or not.
My dad left the house way early Saturday morning and then Heather told me her appointment was for 9 and she was leaving at 8 so I would watch the kids. Instead I skipped breakfast and left for work early and ate breakfast somewhere else.
Heather was getting ready when I left. She tried calling me but I kept walking lol.
I got 10 calls from Heather before those stopped and then around lunch I got 5 calls and 4 texts from dad saying I was supposed to babysit and did I realize I cost Heather her appointment.
I ignored his calls and texts. I got home around 3 and Heather was yelling and cussing me out saying I knew she had the appointment. My only response was she knew I wasn’t calling out of work.
She tried to take my phone but I refused to hand it over.
Dad got home around 7 and he was pissed too. He lectured me on leaving Heather without someone to babysit and on not taking the time to be there with my half siblings. He told me I might not want to be with them but as a member of the family and a member of the household I owe it to everyone to contribute and to make time to help out.
He said my half siblings didn’t deserve to be walked out on like that and Heather didn’t deserve to miss a doctors appointment because I’m spiteful that he remarried and they want us to be a real family.
He told me I need to start working on family relationships before I have none left. Then yesterday morning they expected me to apologize or to act remorseful but I’m not. I have zero regrets and I went to work as normal yesterday.
The reason I focus so hard on work and school is I do not want to live with them a second longer than I have to. I’m saving to get out and go no contact and I work every chance I get.
My dad’s aware of what I’m up to but I don’t think he really believes I’m serious about it but I am.
AITA?
Conclusion
The original poster is facing a conflict between his commitment to his job, which serves as his exit strategy from the current living situation, and the expectations placed upon him by his father and stepmother to prioritize family obligations, specifically childcare for his younger half-siblings.
The central question is whether the OP was justified in prioritizing his work schedule over the childcare request made by his stepmother, or if his obligation as a household member, particularly regarding the missed medical appointment, required him to sacrifice his work shift.
Here’s how people reacted:
1. Not your kids, not your responsibility(while yes that’s entirely up to you if you want to help out or not, you said no they should’ve planned appropriately.
2. Poor planning on their part doesn’t equal an emergency on yours.
3. I have 3 kids. 3 and under. They come with me everywhere. It’s just the reality of having kids ?
4. It kinda sounds like your dad is trying to sabotage your plans to move out. If you don’t work, you don’t get paid, don’t show up for enough rostered shifts, you could face disciplinary action, you don’t work/don’t get paid/get fired you lose more money towards moving out and dear old dad loses his in house baby sitter…
Do not let them convince you that you are a bad person for wanting to live your own damned Ife. Do not let them try to live it for you.I hope you find what you need, wherever you go.
Again, who has a doctor’s appt on Saturday???????
I think dad should be wondering about this himself instead of being pissed at you for not watching his kids while his new wife cheats on him.
Those are not your children. It’s fine for them to have asked you if you were available to babysit during the appointment. It’s not fine that they expected you to call off work to babysit.
Heather should have taken her kids with her to the appointment or made other arrangements. It’s not your fault that they were ill prepared for this. She should not make appointments for days that your father is unavailable to babysit if she can not take the kids with her.
Bad planning on their part does not constitute an emergency on your part.
I have 3 kids. They’re MY responsibility if I have an appointment. They either go with me or my husband takes an hour or so out of his day to stay with them.
Save up and leave as soon as you can. Don’t look back.
Updateme
Id tell dad that if he wants to save family relationships, he needs to find and hire a babysitter because being family doesn’t make you automatic backup childcare.
They are the parents and they need to figure it out. They also need to respect that you have your life.
Why do you want to move out so badly and go no contact?
I had to move out when I was 17 😢
Those aren’t your kids so they are not your responsibility. Telling you to call out of work to take care of the kids THEY CHOSE to have is ridiculous. They should have thought about their baby sitting needs before they kept popping out kids.
Why couldn’t his wife reschedule her doctors appointment to a more convenient time
Keep your boundaries. Keep your head down. Get out as soon as you can.