I went to a school in a very poor part of town. I was in 5th grade in 1956. A couple of times I had to stay after school for fighting. I was shocked when I heard the teacher scold a group of the other kids who had been having sex. The teacher (male) was dealing with a girl who had been pulling a train in one of the window wells at recess. I hardly knew what sex was at 10 and here were kids already doing it.
Again that was 1956 - the year Disneyland opened in Anaheim California. McDonalds was just starting to pop up around the country. Everyone rushed home to watch Mickey Mouse CLub . Apparently Disney had the right idea when he hired Annette Fuincello as the "up front" mouseketeer.
At that time no one would have believed what was going on in some of the poor schools.