Off my training course the guys that got jobs were 23, 24, 25 and 25. Had older guys there and they are still looking now.
As for Monsieur Dorosenco's comments about feeling safer with a silver haired chap similarly experienced to a young guy, hmm? Not ageist, but believe first jobbers should on principle have a steep learning curve! And then if that means the younger the better then so be it.