What is this good education? Never heard of it.It's called and e d u c a t i o n. Those who have a good one do not refer to it as "nonsense" -- only those who have a ****ty one call what they have "nonsense". What do you call yours? Oh wait! You just now told me.
No, sex obviously serves humans in creating a strong bond between a man and a woman. In fact I'm quite certain it does the same for many animals.