All very true, except the bits about getting your greasy palms on their bank account (which can't happen without monumentally exceptional circumstances, and god knows I've tried,) and the reasons for the offspring decamping. In my experience, once the poor old codger gets dementia or starts breaking their hips or whatever, the offspring suddenly remember their lifelong dream of emigrating to new zealand/south africa/anywhere out of reach. So the old dear has to go into a home as there remains no practical alternative. I know several families who did exactly that the moment their remaining parent lost her/his marbles and started shitting themselves daily. I'd actually prefer it if they just said outright "we can't cope, she'll have to go into a home" than "we can't cope so we're fucking off to australia, we'll be back when she's dead."