Values are not the same as the all the nitty gritty details of human sexuality and the art of courtship. Exactly how it all works.
Face it. If that education were both ubiquitous, as it should be, and age appropriate, which we are massively failing at.....then people would not be so confused and hopeless about the whole endeavor. There would not be anywhere near as many "missed connections" or as many assaults. Most rapists do not know they committed rape. Do you really think those numbers would be so high, if instilling "values" at the age of 8 or younger were enough.
My daughter got her first sex related conversation at 3. The apecific topic was menstruation. At 3, all she needed and could handle at that point was that Mama wasn't hurt, it's not a boo boo, this happens regularly, it's not a big deal, that's what the stuff in the cabinet is for so please stay out of them, and this is what mommies' bodies do when they're not grow babies.
Anything more would not have been age appropriate.
She's 19 now. We are still having conversations about sex, reproduction, courtship, the whole kit and caboodle.
Now we're getting into more "how to" guides, political, legal, safety, pleasure, etc. Because those broader, more nuanced conversations have become more age appropriate the past several years.
"Instilling values" at age 8 is not enough. It's skimping, bare minimum, shirking your duty as a parent, throwing your kid in a lake without teaching him how to swim sort of shit.