You can be strong as any boy if you'll work hard and train yourself in athletics, the way boys do.
As with the factory, so with the office: in an assembly line, the smaller the piece of work assigned to any single individual, the less skill it requires, and the less likely the possibility that doing it well will lead to doing something more interesting and better paid.
The very first television ad targeted to women was produced by the Eisenhower-Nixon campaign in 1956. It includes footage of a woman supervising her children doing their homework at the kitchen table.
In the last years of the nineteen-eighties, I worked not at startups but at what might be called finish-downs. Tech companies that were dying would hire temps - college students and new graduates - to do what little was left of the work of the employees they'd laid off.