I do just want to add that one thing pubic hair does is help keep bacteria *out* of the vestibule and internal genitalia. That doesn't mean it isn't okay to trim or remove pubic hair if that's what you want to do, it's just to say that doing so actually doesn't the opposite of keeping it "cleaner." Rather, it removes something that helps do that.
Never doubt that a small group of thoughtful, committed citizens can change the world. Indeed, it is the only thing that ever has. - Margaret Mead