Recently my (21f) girlfriend (25f) asked me if I could start picking up her son after school. We've been together for 4 months and I just met her son (2m) a few weeks ago. Chase (fake name of course) is a great kid and I'm happy I get to be in his life and with his mom but I'm not really sure if I'm prepared to be his step mom or anything, at least not right now. My gf just got a new job and she tells me she won't be able to pick him up from school on Mondays and Tuesdays due to her schedule. She asked me, since I don't have a job at the moment, if I could pick him up on those days. Initially I said yes, but after speaking with my mother and grandmother I'm having second thoughts. They told me that my gf will end up using me as a babysitter and will pawn Chase off on me. I'm not really sure what to think. They're against it but my brother said I should do it if I want the relationship to work out and I should be prepared to be a parent since I'm dating a mother. I don't have any friends to ask, so I'm asking reddit lol.