Julie-
I also think there are articles on the site that are certainly more education than necessary for kids (Prince Albert Piercing and Fisting come to mind) - and I think that we should do the socially responsible thing and post that somewhere.
We do. The main page clearly notes that we strive to be a "complete and accurate encyclopedia".
A disclaimer would IMHO send the wrong signal; some people would believe that we only say this because we have lost control over the content of Wikipedia (a totally open site after all) and people are posting pornography all over the place. We do not allow pornographic content, but we do allow human knowledge that some people might consider offensive -- I think that goes with the territory.
Regards,
Erik