I think it's important to look at the bigger picture. Elderly people need help. Not just money or physical care, but help with things like getting to the bank, figuring out what forms you need to fill out online, buying the right kind of compression socks, and so on. Even people in care homes typically need this kind of help, the staff isn't helping them get an appointment with the bank, driving them over, and sitting with them while they discuss their savings plans to make sure everything is in order.
If no one does these things, we have a lot of old people who will be in real trouble. I see some of them in my work and it isn't pretty. Even the elderly jerks and criminals need this sort of help.
So who is meant to give it to them? Strangers with no connection to them, relatives, who else is there? Or do we just want to leave those people to moulder alone?
I don't think it's just about love and appreciation. There is a duty of care to those around us and the people we have the most connection to in our own family, then those in our community, and so on.
There can be times when a family is so fucked up totally cutting ties is appropriate, but that's not the same as saying it's all about love.