Lots and lots of guys are really into being submissive -- there is something that satisfies a very important need for many people. However, as an older man who loves younger men, it is hard for me to find a sexually dominant younger man.
I am actually a very "dominant" man in most aspects of my life, but I really, really love to be completely submissive for younger men (18-25 or so, slim, smooth, and pretty). All too often younger guys are the submissive ones, seeking dominant older men ("old, fat, bald, and hairy"). But when a younger man enjoys being dominant with an older man, nothing gets me harder and hotter faster!
I see lots of threads about older and younger men, but combinations in which the older man is submissive for dominant or aggressive younger men seem to be very rare, but wonderful!