So my sister (30F) just had her first baby two months ago. I love my niece, she’s adorable, but my sister has started to assume I (24F) will basically become her free childcare. She’s going back to work next week and asked me to watch the baby 10+ hours a week while she works. For context: I already have a full-time job (not remote), and the only way I could even do this is by sacrificing shifts, rearranging my schedule, and basically tanking my own income. When I told her I couldn’t commit to that without being paid something (literally just to cover lost wages, gas, food, etc.), she went off on me. She said “Family doesn’t charge family.” That I’m “selfish” for putting money above helping my niece, and she “would’ve done it for me” (which I highly doubt with her having her own baby). My parents immediately took her side. My mom said, “You’re young, you don’t have a family to provide for, she does. You should step up.” My dad kind of stayed out of it, but implied I should just help out for a few months until things settle. I do want to help. I’ll babysit occasionally, weekends, or emergencies. But 20 hours a week is basically a part-time job. And I can’t afford to lose that time without pay. Now my sister is barely speaking to me, my mom says I’m “punishing her for being a mother,” and I’m starting to feel guilty… but also kinda resentful that they expect me to sacrifice my own life for this. AITA?