Women in their 20s - particularly their early 20s - hold all the cards if they just keep themselves in even decent shape.
I won't bore you with details of my personal history, but that is definitely not how I remember dating when I was a 120 lb. woman in my 20's.
Fair enough. The two groups least in demand in general are younger men and older women. Men are hard wired to be attracted to young healthy females no matter the man's age. He may know he's got no shot and may well not act on it knowing he would just embarrass himself if he did....but trust me, he's still looking. That never stops until death.