"In the Boomers' time it wasn't socially acceptable for women to work..."

WHAT?  

No, no, Salear1970, you've got your generations mixed.  

It wasn't social acceptable for women to work UNTIL boomers went to work. Feminism rose in the late 1960s and early 1970s.  THAT's when it became acceptable for women to work outside the home . 

The only (brief) exception was during WW II, when women did "men's work" because the men off to war.  As soon as they came marching (or limping) back home, the women were OUT of offices and factories, and back home looking after the kids--who were l'il boomers.   

"Looking at the lost income potential of one parent not working ..."  I know you're trying to tell us something here, but I'm not sure what that is.  Lemme help: today, many two-income families might do well to exam just WHAT one of the those 2 incomes is buying.  A 2nd car & car expenses so both can go to work?  Childcare expense?  If so, a cost case could be made for just...staying at home.