My two older boys are 21 and 18 and I don't let them cuss around me. My 21 year old Is pretty good about not doing it but my 18 year old has a potty mouth. Incidentally, he is the one that has been in trouble with the law and smokes pot four days a week. Coinicidence? Probably not.
I am 44 years old and don't cuss in front of my parents or in-laws... I respect them to much to do so.
Just to follow along with the Bwood/Shane Walsh trend, m'ask you somethin', man. What makes you think that having a "potty mouth" and trouble with the law and pot smoking have ANYTHING to do with each other?
From personal experience and witnessing kids, I'll go so far as to say that telling your grown men (they can be drafted to go fight and die in a war....they're men) what they can and cannot say around you and thus cuffing them and controlling them could LEAD to that sort of rebellious, trouble with the law and pot smoking.
I cuss like a fuging sailor, and around my 65 year old father and mother. I cuss around anybody. Why? Because I'm a grown ass man living in America, where I have the goddamn right to speak however the fug I want. I curb my language around small kids, because I don't want to influence anybody's kids and cause a scene. But around the kids in my own family...say what the hell I want, as does everybody else. Best part? The VAST majority of the kids (i'm talking 9 to 15 years old) don't cuss because they simply choose not to. Not because they're told "don't do that". In fact, they're encouraged to speak their mind. But they don't because they simply CHOOSE to not cuss, and that is just fuging dandy.
Btw, I mentioned the entire above paragraph just to say I'm not far from being a police officer. Coincidence? Probably not.