[pbhjpbhj]

>not really suitable for watching a newborn for hours //

Traditionally you'd put the baby in some sort of sling/papoose/carrier and do pretty much what you'd normally do but with extra breaks for feeding etc.. Children learn by seeing and imitating, in a few years they can be productive parts of the family/tribe.

IME children need lots of energy put in to their upbringing. My kids ages span a decade - I'm far less able to give the youngest the active upbringing I feel he needs than I was for his older siblings.

Mind you in this sort of scenario there would be much shared responsibility and lots of people to carry/teach/feed/entertain/etc..

What's not better than kindergarten?