Depending on the situation, it seems like mutualism to me. I stayed with my parents through a lot of covid and was happy to help contribute with the groceries and cooking because they’re family and I wanted to pitch in. I guess it’s really a matter of expectations, they didn’t expect me to pay for groceries, just to pitch in with the cooking. I think it’s also a matter of circumstances, if we were living on a tight budget in an apartment, I think it would be fine of them to expect me to contribute a bit to expenses if I had a job, but it wouldn’t be fine to me if they like set a dollar ammount or percentage or something like that. I don’t know, I’m just poking my brain to see how it reacts but it seems to me the expectation of family working together to provide for themselves as a family is fine as an expectation, but that starts to break down when you add transactional details. IDK, I’m rambling, and probably missing your point, but you can have my random thoughts anyways