There is profanity in schools where you kid goes to or from the movie he/she just
watched with their friends or from the music they were/are happy to listen to at that braai last weekend. Were do you think our kids are going to learn how to say those words? From you ( I hope not!)? We have movies (Godfellas, Shaft, Inglourious
Basterds, Menace II Society, ), songs(Lil' Wayne, Rick Ross, Eminem), books (...umm kids don’t read these days!). Moderation happens but unfortunately you will only have 2 comments left after wiping out the slate "clean". I suggest you install Netnanny on your kids computers so that it "blocks" that content. Plus the PG setup on DSTV so that they don’t watch that odd "inappropriate" flick on TV.
I think you will spend more time in your life regulating your kids than actually living it!