Anti-Climacus

WHY DON'T WE WHIPPERSNAPS WEAR WATCHES? Jacob Levy asks, quite sensibly. I don't think the reason is primarily aesthetic, or practical (in the sense Levy uses it, where it's clearly less practical to use a mobile phone to tell time than a watch)--it just seems like a question of redundancy and priority. I have to have a mobile phone, and generally have to have it on me (or near me) at all times, because that's just the way everyone communicates to everyone else nowadays. The mobile also tells time. What's the purpose of going out and buying a second piece of equipment to perform a function done by something I already own (unless my motivations are aesthetic)? Nevertheless, as professorly affectations go, it's one I may yet pick up in the future.