I know these people. I had a circle of friends who weren't really mine, but they were tangential to my own circle of friends and the two circles were separated by a few years of age and the younger group had an odd, generally smart ass, geek mentality with no sense of real life taking place.
They did and played:
RPG games on PC
dungeons and dragons
Loved Pokémon and Anime
Lived in fantasy land
My group did and played:
First person shooters and RTS games on PC
Partied, drank booze, got laid
Had an actual 40 hour/wk job
physically active, biking and weights etc