Kids used to be able t pay out because other adults would look out for them and if you were being a nuisance your parents would be told and they would believe the adults not the child.
There were virtually no cars in the daytime, the only family car was with the dad at work.
Men used to take pride in supporting a family, and on the other hand abusers had their wives trapped, there were more local police on the street, church leaders knew the flock, there were more spaces not just streets of houses, if you had a work ethic there were more jobs for life locally and affordable housing so inter generational childcare was more usual.
Adults don’t like other children anywhere near their houses nowadays, there are cars parked everywhere all the time, much much much more traffic, very few open spaces to go.
It’s not just parental techniques, parents have to fill in the gaps that society used to fill. If kids are out now adults post ring doorbell footage of them on local Facebook pages. Adults have become much less tolerant of other kids.
Go to some European countries, their attitude to children is very different.