[jacalata]

It's ok to say "it doesn't appear to" but the onus of evidence is always on someone making a positive claim. It's safe to say that children have historically not been sheltered from many things that are today definitively known to cause harm, so the appeal to the past is not a strong one here.

[TeMPOraL]

The positive claim being that coarse language hurts children, yes. This is the positive asserion that needs proof.

[jacalata]

Nobody has made that claim in this thread. The positive claim we are discussing is still Vonneguts quote.

[littlestymaar]

Well, the thread started with :

> but, I don't think this is really what people want their kids reading […]

This is actually the initial claim, and the Vonneguts quote was a response to this claim.

Parents used not to care about what their children hear or read, until society told them it's bad parenting.