http://www.axisandallies.org/forums/index.php?topic=13054.75
To the original poster - you should check this out. This poll has already been done, but with proper age distribution.
252 people have voted on this previous poll, and only 15.2% are under 21!!
As of Dec. 11 on your poll, 17% of the 40 voters here are between 16-21 and no one is under 16. So you are pretty much at the bottom end of the A&A players spectrum! :-)
Apparently I am the average A&A player, at 36! I started playing at 15, in 1990. Didn’t play for a few years once I got married, until the CD-ROM version came out (very buggy, but still very fun. Can’t play it on computers nowadays). Then started playing “Revised” in about 2007 (didn’t even know it came out in 2004) just in time to get my copy of Anniversary in 2008 and have been playing NONSTOP since! Dabbled with Global, but the rules just kept changing every couple of months, and I haven’t even checked out Alpha 3 yet (This Russian NO thing sounds ridiculous, and the confusing, special Mongolian rules seem to be unneeded IMO). So am still playing Anniversary primarily.