>> But there are no other kids out there. I'm sending him out into streets empty of kids.

This. It's a number's "game".

My father, born in rural Romania, had 8 siblings, one of them died of an accident in his childhood (yeah, during "free range stuff"). I was born in a town and have 2 brothers. Live in a city and have one kid.

I can't send my kid out carelessly because I don't have a backup.