My interpreta is that in many other countries there is a sense of collectivism in that everyone takes care of children and collaborates a little bit. If you see a kid, you don’t think something must be wrong, you lend assistance to their parents by being an impromptu guardian and help the kid achieve their means.
Whereas in the US the modus operandi is “Well it’s not my kid what do I care? Their parents must be terrible people for not standing right next to them”
For example, as a 7 year old in eastern-ish europe, I would walk 1km to school on my own every morning. The worst that ever happened was when me and a friend decided that umbrellas arr the perfect snow shovel.