If they can pay for it. That’s a big “if.” Almost any place in the world can be a terrific place to live if one is wealthy enough (and that doesn’t always mean Top 10%). There are some exceptions - what I know of North Korea comes to mind - but even in third world countries those who “can pay for it” seem to do just fine.
In all countries we’ve been to we’ve seen kids laughing and having fun and met adults enjoying themselves and their country. Not everyone ascribes to “he with the most toys wins” (or is the happiest).