I don't have kids, but everyone I know who has daughters, which is all of my siblings, they are taught young that nobody is allowed to touch them on specific parts of their body - their crotch, butt, thighs, and chest. Period. And if someone tries to, make a fuss and call for help.

Like I said in another thread, if any man touched a daughter (or niece) of mine like that, he'd be on the ground spitting out broken teeth.