I definitely think that true fighting game "community" (rather than just bandwagon fighters) are 20+ age wise. This is because most gamers 12-late teens are more concerned with bandwagoning and might not even have conceptualized that fighting games ARE a discipline and that there exists a community that is even necessary given the nature of these games. And if they do have a proper conception of these games, most just don't have the patience, time, confidence, or even the muscle control to discipline themselves over a fighting game. I recently begged my little brothers to let me try to teach them kof13. I succeeded in getting them to understand all of the mechanics, but then it came to execution. They both tried dozens of times to simply do 1 dragon punch or fireball and simply just couldn't do it. You could understand how impossible it would be for them ever to get into fighting games now that they have already written off the franchise from that one experience alone. They are 10 and 12. But yet, one gleaming game breaks that mold and both of them are even solid at a little game called Super Smash Bros Brawl. Plus Brawl is a game that gets the whole playing crowd into a laughing screaming riot. I guess fighting games today are more for passionate and brain centric gamers instead of people who game to socialize and collaborate online and turn their thinking minds off. Plus given the chronology of the fighting genre, it just makes sense that most fighting fans were there from the beginning, and already possess an innate grasp of everything about fighting games, including but not limited to tried and tested game mechanics that have carried over for decades. Today, Super Smash is basically the only game bridging the gap between young and erudite fighters. But there is no stepping stone to land on for the young players to cross the bridge on to more serious fighters. Only time will tell if that game will come, but as for now, fighters are typically adults.