Why is everything so "crude" today...commercials, movies, books....

You can't watch 10 minutes of TV today without being subjected to overly crude subject matter. 15 years ago, we didn't constantly have commercials talking about bathroom issues, sensitive bodily functions, STD's, etc. Everyone on the planet understands the purpose of toilet paper...why do the stupid bears have to be so graphic? Just in the last hour, I've had an actor tell me about how she "pees" a little when she laughs, some weird sick looking country band talk about their diarrhea while dancing, and watched an informative commercial demonstrating how a tampon works. What the hell? It's as if TPTB want to strip away any common decency left. If it's private, vulgar, or obscene, then it's fair game.

I'm no prude, but this is getting ridiculous. There must be a reason.