To age well, it’s not just about having money, but maintaining ongoing value to others.

The elderly in those veterans' rest homes—why do their children often wish their parents wouldn't pass away too soon? Have you ever wondered why? Are they actually wealthy? They're not businesspeople, so no matter how high their salary, just how rich could they really be?
Yet the children of truly wealthy businessmen don't necessarily want their parents to live too long.

Those old folks in the veterans' homes may not necessarily be rich, but they have ongoing utilitarian value.

Don't just mention kids from ordinary families—even second-generation rich heirs, upon waking, are busy calculating. You have to guard against your dad fathering a younger sibling on the side, watch out for a gold-digging spouse dragging you to the bottom of the sea, stay wary of subordinates coasting along while the outside world runs schemes to fleece you, and you still need to guard against your own children wanting you out of the way once you grow old.