I knew I could count on Choire Sicha, he of Gawker fame (?), to nail down the exact irritating nature of these t-shirts I saw in Urban Outfitters on Sunday morning (just before visiting a seedy erotic toy store to buy a chocolate penis-shaped lollipop, but that's another story). The shirts say, "Voting Is For Old People." Ho ho. Keep it up, disengaged slackers, and you'll be living in the United States of Viacom by the time you're 40. And that day will come, oh yes it will.
On a fashion fairness note, let me point out that some of the UO shirts are more entertaining -- whether regional, music-oriented, or just plain odd (including this one, which I actually own).