[snarks_when_bored]

All social group[s] larger then a family were, until very recently, products of multiple and interrelated family groups.

And that disagrees with what I said, how? "Multiple and interrelated family groups" define what a social group is among humans. And it is in the interest of social groups (so defined) to educate their young.

[Durus]

The point is while groups existed that were larger then a single isolated family group it was still, in fact, mostly a family group. That is quite unlike what we have now. A town is not a family, a state is not a family, and the country isn't a family.

"the social group has always had an interest in educating its young members in the ways of the group"

If you are referring to the actual family then that is fine. If you are referring to a govt. then that is called indoctrination and was a prime method of changing society in the USSR.