Here in the suburbs these days a parent is shamed or even arrested for allowing kids to ride a bike to the park by themselves....

as to this border issue that is the subject of this thread, its pretty nauseating to think of (I have 5 grandkids in the same age group as those in the photo) if those girls were just a bit older they would have had a saleable market value and we all know what would have happened to them and where they'd've ended up.