Like rob, I've been playing video games for 30+ years. I would absolutely loathe myself if I gave up something I've enjoyed for so long simply because it didn't conform to someone else's idea of what an adult should do. Not only should I not care about someone else's definition of social roles, that definition is arbitrary, dated, and more than a little bit stupid.
Even if the open windows of science at first make us shiver after the cozy indoor warmth of traditional humanizing myths, in the end the fresh air brings vigor, and the great spaces have a splendor of their own - Bertrand Russell