It was my experience that young women in general were asking for too much when I was in my early 20s. They wanted someone who had it "all together," and that's just not where most people are in their early 20s. There doesn't seem to be any appreciation anymore for the fact that young couples grow up together. Instead, people seem to think that you grow up first and establish who you are independently, then find someone else to bring into your life. But realistically, you don't finish growing before dating, and in life who you become is based on the interactions not just with your significant other, but your friends and family, too.
Lastly, all of my dating experiences online lead me to women who wanted to be "entertained." And not in the sort of "wined and dined" sense which seems obvious to me, but rather most women I came across didn't want to get to know men, they just wanted entertainment value out of the experience of dating. This was a sharp contrast from interactions with young women in real life. The dating world for both young men and women online seems to create some strange scenarios that don't play out well for anyone involved. I see this manifest the most in online dating where most men are naturally led to play pickup artist lines. I personally find it extremely off-putting. I'm not a jester.