I mean the places I've lived in my life I've left the windows open and the doors unlocked and not had issues. Maybe I'm lucky as your grandma.

Of course maybe your grandma like my grandma ignored all the cases of people that had abjectly terrible lives back then because that wouldnt fit her world view of 'make the present the past again'. Birthrates dropped in the US long before we were born. Homelessness was very high in the US before the postwar 'irregularity'.

All those poor countries are still richer than ever historically, it's just that first world nations are that much better.

Just stop the billionaires from sucking up everything and it's not really too bad at all.