This is going to vary wildly based on location.

Been to villages and small towns where everyone leaves doors open. Kind of places where it literally feels safe sleeping on the sidewalk with your belongings. The cops there are akin to village uncles, telling kids up to no good to stop messing around because they'll tell their parents next time they see em.

Not to the same extent, but it was somewhat true a generation ago around where I live. Almost no one locked their doors and left stuff hanging outside (tools, toys etc.) A lot more rare nowadays though.