"oh man i got my driving permit, wtf am i supposed to do with that, drive?"
Iunno the way you worded it seemed really odd to me. Animal Crossing isn't a linear game, it's a laid-back game for the casual person. It's a game in which you feel good for working on getting a virtual reward. That being said you can make your town and abode look nice along with yourself, converse with the animals, play around with friends, catch bugs and fish, and soon you could go to an island and do a few minigames with friends as well. Events pop up as well since this game runs on real time, so those are always fun. You asked people for games to buy on the 3ds, I'm just guessing this is your first Animal Crossing, in which case maybe you should've read up a bit on the game.