Why do we censor in Schools?

Cuss words are censored because they think that it will thus lower its use overall. In fact, it may actually increase it, because most thing you tell people not to do, they will do more than they would if they were allowed to. Thus allowing swearing (to a degree, cant have people running around yelling "plum!!!!!!!" all day), then we could actually see a lower use of cuss words in the future.

Nudity, in the sense on naked pictures, is only allowed, and barely, in biology. Outside of that, it may seem like an odd thing to have naked day, where everyone come to school naked. So it is more of a common decency teaching than anything.

For questionable content, its basically outside forces on this one. Churchs would LOVE!! to have everyone taught about how god supposedly made everybody and everything. And at the same time, government is still the main factor as to what is taught (dam you No Child Left Behind Act!) so if it is thought of as being off on the general ideals of the government, then it will be removed from being taught.

This is what is great about college. If you are lucky and get a sensible teacher in college, they will let you swear, bring up challenging yet controversial topics, and if the situation calls for it, bring yer pr0n collection in. In speech class is the best place to get a good teacher, because you can knock out to of those with one stone.