Have been with and still fantasize about much younger women but have found with most there is a limit to how far a relationship can develop. But that's true of anyone of any age.
The biggest impediment I've come across to maintaining such a relationship long term is women - and men - of that age rarely know yet who they are nor have a clear idea of where
they'd like to be headed, what they really want out of life. They have just begun to explore, to throw themselves against life. And that newness, that openness is part of the attraction.
Many people - men and women - by the time they're my age they set in their ways and no longer open to life, they're a bit too jaded, no longer vibrant and alive having been kicked in the head by life a whole bunch.