Earlier quoted context omitted.
Which cultures are those? Ancient, tribal cultures, absolutely raised children in a communal way as you say. There's even a saying, "it takes a village to raise a child..." But I'm not aware of any modern cultures that still do that in reality.
Villages and tribes have typically been composed of people who are related to one another. So another way of saying this is that the extended family participates in raising children. Not long ago, children were allowed to roam freely in the neighborhood, walk to and from school, and have some essentially unsupervised time to play and be children. The reason this worked well is because they were known to the neighbors…
Yeah, I see that almost every day where I live. Young kids even take the subway across the city all by themselves. This is normal life in any decent, developed nation.
You've never been outside the United States, have you?