Re: WHY girls work?
Depends on where you live and what time period you are talking about. When I was a baby, long before your babies were concieved, preschools were expensive. Now, the school districts in our area have opened up free preschools for parents who can't afford preschools. It still leaves the middle-class family in a tight spot, cuz they can't get financial aid, but the preschool education is still a drain. Do a random survey at a local elementary school and see the percentages of students who went to pre-school. In my day, the percentage wasn't too high.