I'm in my 30s and never married. I fully expect someone to come as a full person with an education and career. I am beyond glad that I didn't get married to my high school sweet heart or someone I dated in my early 20s when I was still a kid. I am nothing like I was when I was 20, or 25. Maybe even 30.
I know way, way too many people who did that and are now divorced. And a lot of the women in those relationships had children very early and didn't have a chance to get an education or start a career so now that they're divorced and on their own they're having a very hard time securing good income.
Women are definitely not "asking for too much." I would rather be happily single than compromise heavily on my expectations, and I'd wager the sort of women we're talking about feel the same.