With girls dominating schools and more and more women becoming the breadwinner, women began growing up with an understanding that they were superior to their male counterparts
Public opinion was very strongly infavor of female control and within personal relations it appeared that men were becoming less and less important to women.
And at universities, the women know it is their time to rule and some of the thoughts that are going through their minds
Women who were atheletic were getting a real kick picking a guy who was smaller and weaker than they were. They already knew they would be the major wage earner having a much better education and being able to physically dominate their male at the same time make them feel doubly superior