I was in elementary school back in the 80's, and the other kids knew swear words that I can't repeat here. And yeah, I knew a few myself, though I didn't say them in public.
I guess TV was more innocent back then too, because I remember watching a dubbed anime called "The Legend of Manx Mouse" on Nickelodeon and being shocked and highly amused when the Manx Mouse said the line "This book is doo-doo!" Gasp! They said doo-doo on TV!
Once, I heard about some rockstar on a live awards show broadcast saing he was "so
blanking happy" to win the award (obviously caught up in the emotion of the moment) and got a huge fine. I guess they have to draw the line somewhere, but that just seemed a little ridiculous to me.
The other thing that gets me is swear words getting bleeped in shows or movies that deal with adult themes, that children obviously shouldn't be watching anyway, like The Sopranos (the one shown on regular, non-HBO cable) or Kill Bill (shown on TNT). I'm sure they also cut some of the more extreme violence in Kill Bill, but a lot of it was still there, and yet they had to change the name of her vehicle to the "Party Wagon", which isn't nearly as funny.
Also, bleeping swear words really just calls more attention to them.
Parents really need to be the ones responsible for what their kids see on TV, by watching shows with them instead of using TV as a babysitter. If they're too worried about your kids seeing something accidentally, they could try one of those V-chips that you can program to block stuff, or don't have TV.
I know some adults who (not because of their kids) will
automatically dislike a movie if it has any swearing in it, ("Oh, that was an awful movie. It had
swearing!") and that just bewilders me. Sometimes filmmakers go overboard, but sometimes, for intensity or shock value, swearing is required in certain movies.
I once wrote a poem about how non swear words/phrases, such as "shut up!" or "shhhh!" can be just as vicious as swear words if used with the right inflection.
Lastly, I saw a woman feeding a baby, um, the natural way (not sure what words we're allowed to say on here) on Mr. Rogers' Neighborhood when I was a little kid, and I'm just fine today