Older people read books, and i see Video Games as the ultimate story telling source, so why not? It's just as if you were reading a book, except you're interacting with it and watching it over a t.v instead of paper.
i'm sure there's a difference in brain activity and what you "learn" or experience. you can grow as a person reading a book. killing people in gta 4 isn't going to make you a better person or change your life. and if it does, that's pretty comical. lol...
im' 25 and i still play...not every day, probably a couple times a week...but being "too old" for anything is BULLSHIT. fuck what anyone else says about what you want to do, it's your life. views on video games in this society are pretty stupid though. people of older generations think that only little kids play videos games, liek the only shit they have is fucking Mario Kart or some shit.
One of my bosses who's like 40-something though plays xbox360 and wii...but he's also got kids...