America is a nation of prudes
The Musee d’Orsay, in Paris, created a short video publicizing it’s art show featuring the male nude. If you have seen a naked man, these images will not be shocking to you. Yet YouTube originally put the equivalent of an X rating on it. Why? I guess a lot of people in America are still outraged to see that boys and girls are built differently. I mean, really? European art has been showing nudes for thousands of years, and it gets banned from those under 18 by YouTube in 2013? They reversed their decision after some outrage, but still left a warning label on it.