High taxes forced women into the workplace so families could keep up.
Bingo.
The keyword is TAXES. That is the central reason why women HAVE to work.
A major change in recent decades has been the escalating cost of housing .
In many parts of the country, families can’t afford a typical house , can’t get a mortgage, based on just one middle class income.
In many areas, the dad would have to have an executive job of some sort, to be able to afford a house and get a mortgage based on his income alone.