Right, depends on the kid, some can be quite indepedent and responsability should be shared. Single parenting is so hard But why would they rely on you? You're not the father, it's unfair to ask you for financial responsability. Feels like dating a single parent get al the negatives of parenting without the satisfaction of them being yours. And you will always come second in your partner list of important people. Must to be why it's a dealbreaker for many, especially the ones with no desire for kids.