Exactly. I saw a great satirical cartoon years ago, don't remember where:
A family sits in front of the TV, next picture they watch a guy, on the gallow. They see him from the stomach upwards. No problem there. Then they see the full body and he has a hard-on.
Instantly the parents put their hands over their kids eyes.
And how come kids can be in military school at the age of 7, and join the Army at seventeen, but in so many states you are not even allowed a beer before 21.