About young people looking after the old; Here in France it's not an expectation, it's the law. My grand mother needs to go to a retirement home, her retiremen

About young people looking after the old; Here in France it's not an expectation, it's the law. My grand mother needs to go to a retirement home, her retirement pension doesn't cover the full cost. My mother and I are required by law to cover the rest (at least that part that is not paid for by the public health system). I'll gladly do it, but who am I to impose that to another person ?