I don't think its that simple. If we look back far enough, it was more like the man/men hunted or gathered and women took care of kids, fire and cooking. If I

I don't think its that simple. If we look back far enough, it was more like the man/men hunted or gathered and women took care of kids, fire and cooking. If I look at less distant ancestors, they all worked in the fields, and so did grandparents (who were not as old as these days when 15 was a good age to start bearing kids, so 35 years old granny was normal). So it again falls mostly on women. Grandparents, those still living, much less.