During the Great Depression, women were discouraged from working. Why? So that the few jobs available could go to heads of households, aka male breadwinners.
But then, along comes World War II and the majority of the workforce is gone, off to fight the war. The need for war supplies continued to exist and factories across the nation needed workers. What could they do? Who could fill those roles?
Women! Yes the same women once discouraged from entering the workforce.