In the last case, some of the children found adoptive parents or grew up in orphanages. Now there may be a burial in a mountain canyon or under a billboard somewhere near Winnemucca. In a slightly more civilized case, it might be an abortion. Knowledge becomes the power to make rational decisions. Curiosity stymied becomes obsession.
Obsession soon leads to disaster.
Fewer na ve and innocent girls would be overwhelmed by their first experience with a boy. And all kids need taught the responsibilities and risks associated with sexual activity and all the ways to take responsibility and reduce the risks. I used it to inform my children as they grew up, and the large pictures and simple text inspired a lot of intelligent questions from them. I no longer have a copy. I have heard it is now considered pornographic by U.S. Customs and you can get in trouble for owning it.