Good point. I do agree it’s more of a modern idea.
Though in a way, you do have to care for your retirement account. You have to make deposits regularly and ensure investments are done responsibly to ensure the best possible outcome.
If you don’t take care of them, then you’ll only get a poor outcome, like not receiving the best possible care but just the bare minimum necessary or even nothing at all, if things are bad enough.
After all, the bible also says “Love they neighbour as thyself”. When your children grow up and become your neighbour, the way you’ve treated them has a possibility of coming home to roost, especially now.