That's like being too old for lego, or too old to think pinwheels are awesome. There's really no such thing. And pokemon almost improves the older you are, because you begin to really appreciate the strategic value of the game and really start to plan the best teams and stuff like that. Little kids just collect all the fire ones or all the pointy ones or the cute fluffy ones and just mash the tackle button until the npcs get bored and give up.
I'm still stuck on black. I want a shiny woobat, and the game is INFURIATING ME that I can't freaking find one. I've had to of spent a month total (in hours) in that damn cave trying to find one. I WANT IT.