People living this way of life are not working themeslves to the bone; they spend lots of time just hanging out and socializing.
I think the gruling overwork that most of us experience is more a feature of fuedal and then industrial culture, than a natural state of existence.
But still we are in real terms actually super rich, so it should be possible to somehow rearrange things to get back to that ideal, I think.
(Of course there are deeper issues here too -- just having a mom sit at home all alone with her baby is actually not very good either. Really, you want mom and baby to be integrated into a meaningful, rich cultural environment. And I think it would be nice if kids were more integrated into normal life, in general.)