It’s fairly simple, really.
America was ultimately founded by religious fanatics. Thus we get witch trials, persecution, and all that other good stuff, based on these religions and religious beliefs.
Now, despite this being the 21st century, we are still a throwback, due to the fact that special interest groups gain political power by rallying behind specific candidates, who then push the religious agenda on the rest of the country.
This in turn leads to moronic censorship laws. If you need an example, just go look at the Church Lady on the Simpsons, always screaming “Won’t someone please think of the children?”.
It’s ultimately a war, when you think about it. Organized religion is trying to indoctrinate our kids from a very young age by encouraging each successive generation to be ashamed of ■■■ and anything associated with it.
Thus in America, we get dumb things like censorship, even when the nudity is completely nonsexual in nature. But our children are given free reign over extremely graphic brutality on a regular basis.
The M-Rating is crap, in and of itself. My cousin’s kid was under 10 years old when he got to play extremely violent games like Call of Duty Black Ops. Parents in America are mostly garbage when it comes to actually stopping their kids from playing M-rated video games.
Conversely, in Europe, such graphic violence is censored. Because they’ve been through extreme wars, and seen that violence up close and personal. And they have cultures that do not shun nudity or treat it always having to be sexual. It just is what it is there.
But in the end, the resources involved, it’s just easier to go with what we have, rather than having to incorporate a lot of optional routes to accommodate varying tastes.