When the boys came home the assumption was the women would just go back home, but what happened instead was a push to keep women in the workforce. We can take a step back here to discuss the fact that prior to the war, women in the film were actually portrayed vastly differently, the same was true in novels.
Suddenly after the war, though she shifted from that slightly nefarious creature to this ballbusting, horrifying, liberated woman. Again, you have propaganda to blame for this. The expectation was that women would just fall in line. It’s what we always did, but this time something was brewing.