I believe Chris Rock puts it best in his stand up comedy. What you listen to and enjoy now (btw he is speaking of music here but I believe it is applicable to games) you will enjoy for the rest of your life (talking of teenagers) if you listen to rock then when youre 40 you'll still be listening to the same bands you were back then and your kids will say "omg how embarassing" but it wont matter to you what they think.