EzratHashem, unfortunately HS’s are not focussed any longer on teaching their students that their first obligation is to be good mothers and good wives and that raising their children is the most important and best job in the world. That is no longer taught. Girls are motivated and pushed to have careers so that they could support their husbands. They are “NOT” motivated to get as much education as possible because as mikehall said Hashem gave them a brain, or because no one knows when they will get married or have children so they should continue their education and be whatever they want to be and then allow their husbands to learn as long as they can.
Did this contribute to the shidduch crisis? Yes it could have because when you have very educated and now sophisticated young women working in the real world, they no longer have anything in common or anything to talk about with their yeshivish male counterparts.