I think there is something more to it than just "mystery & excitement"
No matter how you think about it the species has divisions. Some are meaningless. But perhaps the greatest division is, although somewhat arbitrary, child and adult. Activities routine and normal for the adult are restricted from the child. Unless one wishes to say that no human activity is to be denied the child. Which would include sex, drugs, war, work, or any other number of things. Carried to that extreme, and many today bemoan the loss of childhood, means we will not have children. Merely little adults, which is how some actually refer to children already!
Just a few thoughts!








