Earlier quoted context omitted.
Fascinating. Is the loyalty reciprocated?
It’s basically the same model as social security is supposed to be. It’s reciprocated societally by you putting in lots when you’re young and then you get the benefits when you’re old.
Paying social security (and saving for retirement) when you are young, and getting (some) coverage when you are old, is one thing. It's "only" money.
Having your time, availability, emotional capacity, mental health sucked dry by the elderly in your own family is an entirely different thing. Raising small children is an extreme challenge that requires all your resources; young and middle-aged Japanese are entirely reasonable not to start families.
I recommend reading this:
https://en.wikipedia.org/wiki/Sandwich_generation#Other_chal...