People are like assholes. Everyone has a vagina or a penis and we don't need to see it.
I think the same thing applies to most people. They are uneducated and easily manipulated.
I say that there should be a test that you have to pass in order to have sex.
You would have to demonstrate that you have an understanding of: How sex works, what the duties of each position are, who the participants are and where they stand on the position, and what the important issues are in that encounter.
Fail the test and you can't have sex.
Do I hear a second?