Did all veteran players stop playing?
Granted, I started playing WoW when I was in my early 20's. That was back in vanilla. I'm 32 now and I'm actually the oldest player in my guild. Not that there are a bunch of kids in there, most are in their mid 20's and there is no guild drama (or else I would have left long ago). We're also having fun in raids and progressing nicely (7/7 hc).
But, since we're progressing well in PvE, we're getting a lot of applications as well. And most of those are between 17-22 years of age. Where are all these kids coming from?
What happene to all the 30+ guys and gals? Got married and made kids?
That is probably the most likely scenario. Back when I was 25, I had my own raiding guild with plenty of people. But then I had time, now I don't even want to take on officer role, or even a minor guild responsibility. I just don't want to dedicate my time. I guess most 30+ are/already have quit the game?