I think part of it is that parents really don't teach kids about having relationships at the right times and in the right ways.

A major part of it is just demonstrating a loving relationship daily. The divorce rate doesn't help this.

School on the otherhand just teach kids where they can stick things. Originally the theory was that "they were going to have sex and we want it to be safe when they do." The result was more degeneracy. 😒