Besides, until the hormones take over, kids are pretty much non-sexual beings, and we should let them enjoy that for a little while.
I have an academic book on my shelf entitled Child Sexuality. One of the most interesting papers in it is, if I remember rightly, a comparative study of adult attitudes to children's sexuality done in the US and in the Netherlands. You just exemplified what they found: American adults insist desperately that there's no such thing as childhood sexuality. Hint: the rest of the book is about this non-existent thing :-)
