"If you ask parents why kids shouldn't [violate social norm X], the less educated ones usually reply with some question-begging answer like 'it's inappropriate', while the more educated ones come up with elaborate rationalizations."

I see no loss of meaning, but that's probably because there's so little meaning in the dismissive little excerpt you've chosen to deploy here.

My kids aren't allowed to swear either, for exactly the same reason that this commenter gave. People who think words can't be dangerous, especially for a 10 year old, seem likely to me to be leading sheltered and confined lives.

' while the more educated ones come up with elaborate rationalizations' - one or all of which might be correct?

my rule is simple - they can use the words when they understand (properly) what they mean.

Meanwhile we explain they are "grown up" words and they shouldn't use them. Like another poster above this seems to provoke outbursts of "ooh you shouldn't say that" from the children when we swear.