I play on another game besides SRO too, and age doesnt mean anything. I dont even know how old most people are, because it doesnt matter until you start to see immature annoyances
I have been in guilds ran by 12 year olds, as long as they are doing what they should for the guild, and running it smoothly and not acting like they are a random screaming 5 year old, its all good.
As far as age for a game, on the other game I play there are grandparents playing that game and SRO, full families too. I always been told "on you are too old to play" even tho, us "old people" are the ones paying for the servers to be running, buy premium items pays for that. As long as you are living your life, age of the players on the game dont mean squat. its their life, their right. I work 14 hours a day (well gone that much anyways). I dont want to go out and do stuff after, I rather play a couple hours on a game before bed. I still work

I went to school full time and played. These yungins think they know it all!

I am 38, I been playing for over 5 years on mmorpgs. Old people can have fun too!
Added Edit: The grandparent, she is 69 years old and has been playing for 4 years (I just asked her on msn). her char on this other game i Play, kicks butt
