Mom2Four's dd21 seems to describe me pretty well in my younger years.
I was accelerated and wound up dating a few older boys. One was a 19-year-old classmate when I turned 15. Although I ended up being exposed to some more adult parties, he was a gentleman and understood that a 15-year-old isn't ready for some of the same college activities as a 19-year-old. Though we were at different points in our lives, he was a good fit for intellectual debating and playing sports.
Since then, I have dated guys around my own age, as well as a few older (mostly as a teenager). It evened out for me once I reached grad school/my career, where I can meet men my age who can carry on a good converstation about many different topics.
