It's funny how some children will pick up on the swearing and repeat while others won't- my daughter never uttered one swear word, not even when she presumedly didn't know what they meant, as if she *did* in fact inherently know. And to this day, at seventeen, she refuses to say a single one even though at this point it's entirely up to her.  My son on the other hand, had to repeat every single one and be told that he couldn't, then at around ten he asked when he would be allowed to, and recently I've heard him talking to his online friends while gaming...and because he's in the privacy of his room I pretended that I did not hear the string of profanities ushering from his lips like 'me boom after being told by el jefe that there's a mandatory Saturday meeting', and so long as he's wise enough to continue sneaking it and not drop it in front of me it will remain as such lol.