I am not sure you realize how restrictive the world was for women before the sexual revolution. It wasn't just that women ought to be virgins on their wedding night. Women working outside a handful of traditional fields were seen as stealing a job that should be going to a man, and a poor investment in college or on-the-job training because they would probably quit as soon as they got married. In some small ways businesses figured out how to make money on it, but the beneficiaries were women and to a smaller extent the whole society.
My mother was born 1931.
It was restrictive. The virgin thing, not really a way to prove that one. As long as you weren't walking around pregnant.
Colleges would usually only allow women to take specific majors, because when they got married and had children most of them quit their jobs.
My mother had the option of being a nurse or a school teacher.
I knew an older lady and she majored in home economics because she actually wanted to major in economics.