My thought is that if you wouldn't want to sleep with a women 25 years older than your current age, don't complain

When the business transaction is sex, it's important both parties don't hate their lives when doing it.
But don't stay away from the 20 somethings. Just stop chasing the ones you can't have and enjoy the ones who want your company, many do! I liked older men since I was pretty young, so I loved it when I started doing this in my early 20's and could fulfill my sexual desires for an older man. There are many younger girls I talk to that feel the same way.