>Now that I think of it, he's 20 and didnt ever date?
It happens. I'm 29 and I've never dated. Partially because I didn't even know what dating -was- until my early 20s. Other reasons are because I was too concerned with getting my own life in order, I kept moving to different cities for work/school/etc., I don't socialize outside of work/school, and the only girls to ever show interest in me weren't interested in an actual relationship [if you know what I mean], so I turned them down.
Now that I'm this age it seems like everyone's already taken, so I'm kinda' SOL. Oh well. Just don't let his age and lack of dating experience bother you, it's not really a big deal.