And I think it is because of the big US-Market. Very puritanic, especially lately since the wind changed and religious zelots and right wingers define the public discussions.omg!! they showed full frontal here.. one question though, why do we not see male full frontal as often as we see female full frontal in mainstream tv shows/movies? is there any restriction and is it only for male full frontal?
European movies and tv-series are not that reserved. Less problem to show some skin, ass, tits or dicks even at primetime. Example: The German movie "Die Mitte der Welt / Center of my world" is a movie aimed at young adults (rated for kids from 12 years!), and it shows some ass and dick. (Nice story, too, can recommend movie and book, btw).
So it is maybe more a question of what society is willing to accept rather what producers want.