R Rated Policy

Huntingtons R rated policy is...a little off in my view. Some movies are incredibly profane, sexually explicit and only rated PG-13. Even though some R rated movies are the same way, many are only rated that because of violence and language. But is language really an issue? In my view, crap and shit are exactly the same, but for some reason society has made them out to be worse than they are. And violence, is that an issue either? What is morally wrong with watching war? I believe that many R films are more moral than many PG-13 movies because of this factor. As long as we keep our own moral beliefs in mind, I believe that their should be no problem with watching R rated movies.