Reading on a German discussion board I am stunned again about how different things seem to be there, or is it just me?
They are discussing children's knowledge of swearwords and crude expressions for sexual intercourse etc., and the majority agrees that children of Kindergarten age (so between three and sex) will hear these words and possibly even know their meanings.
Now dd1 doesn't know any bad words apart from possibly "bloody". And in school they don't seem to be used around the playground either...
or if they are, she hasn't said any of them at home, which I think she would, as she comes home all outraged to report if a boy in her class has said "pants" or something. 