Yes, I was simplifying a lot. The point still stands, in that except for a short period of time it has never been "one person working", because maintaining the

Yes, I was simplifying a lot. The point still stands, in that except for a short period of time it has never been "one person working", because maintaining the household and looking after all the young in the extended family is a job of its own. It was not at all like having two kids, who spend half the day or more at school.