So when a six year old scrapes his or her knee, goes to the school nurse, and is cross examined about sexuality, how is the kid going to fight back?
Gimme a break.
But if your six year old knows how to even answer a question like that, you've lost. If you can't counter a loud mouth idiot, again you lost. ( I would storm the school). Kids are always bringing home stuff, how you handle it is what matters and what they should most influence by.