Bein hasdorim, I can’t believe you’re even asking the question after all the shidduhim threads. The reason they don’t have anyone to date is because there are much less older single guys than girls.
35 year old guys probably DO want to date girls in their 20s if they have a choice between that and 34 year old girls. But we don’t even have to come onto that reason, since there aren’t enough 35 year old guys to begin with.
I dated 30 year old guys when I was 23 and 24. Because even at that age it wasn’t so easy to get dates. Most guys in shidduchim are under 25, and by the time I got to 23 years old, I already had less dates than I did at 21/22. And this was more than 5 years ago when the crisis was not nearly as bad as it is now.