My range isn't really all that set. Until I was about 20 I just dated whoever was willing, but that tended to be people pretty close to my age or younger and a couple women in their mid 20s who didn't realize how young I was at the time. Then for a while in my early 20s I tended to attract 17-19 year old after 17-19 year old until at 26 I essentially swore off anyone under 21. Today, at 27, I would give anyone a shot between 21 and 35 or so. I'll be finally finishing school in the next couple years and would optimally like to have a couple years with someone before having the kid(s) I'd like to have somewhere before my late 30s.