Overwhelming majority don't assume that. Traditionalists I know complain about women not wanting to do that anymore.
I think my post was intrepreted as something that applies to a majority of women or that I think women should act a certain way. I was just saying that anecdoctally, the practice of going to college to find a husband is not dead.
So, unless you assume your classmates are in school just to find husbands and assume all girls are like your friends, the preferences of your friends are irrelevant.
I knew people who had trouble to keep up in school, because they came basically for party life and procrastinated too much. I don't assume all guys are like that. Similar thing (through being family oriented and willing to accept negatives of being at home is more noble I guess).
A lot of women still do this or are expected to do this. I'm not sure how many of them are going to MIT or enrolled in CS, but it's common for women to go to college with the expectation of finding and husband and being a house wife, or working a few years, then having kids and doing that.