If you are offended by these words or don't want your kids to hear them, then lock them in a room. People swear. That is reality. If *you* don't want your kids to swear, or want them to hear it- you control that until they're old enough to make their own choice. But you simply can not control what other people do or say.
I notice you didn't answer my question. Instead, you went off on some ridiculous rant reminiscent of the paranoia liberals often express toward morality.