Don't know why this is bothering me but here it is my sisters friend is 18 and we just met her…

Don't know why this is bothering me but here it is my sisters friend is 18 and we just met her yesterday. my sister hangs out with her all the time like 24 7 and we just found out that she has a 1 year old and she says her family cant watch him when she is at school so her boyfriend watches the baby or his mom and he live over there. i know she is young and she can have fun still but wouldn't you want to see your baby if you had all day and nothing to do? I know i am not a young mom so i don't understand.