I can't get by the idea of kids wearing their gi outside the dojo. But my students who run schools allow it. To each his own, I guess.
As for annoying..
I remember when I was twenty five or so, before Martial Arts were on TV much. On a winter Saturday, one of the stations (ABC, NBC or CBS) used some karate stuff as filler. It was the breaking division of a tournament in New York, the paticipents did their breaks in a ring. A guy came up, had some wood (set up like a stack of pine boards) and was going to do a forehead break. He stood in front of it, did his dramatic breathing several times, got all psyched up and snapped from the waist - it didn't break. So he did it again. And again. Then stopped, looked at it, focused....and started machine gunning with his head, WHACK, WHACK, WHACK, WHACK,WHACK, WHACK, he did this a bunch of times, he's bleeding now, and does it some more and more and more, before he quits and staggers away.
Everybody I know saw it and I was the only person they knew that did Martial Arts. For a year I heard, "Hey, I saw that karate stuff you do on TV! So, what's that guy do now, go back to the Karate Shop and teach that? Cuz I want to get my brother-in-law a membership."
The comments made to me by the boys weren't annoying. The fact that the TV network broadcast the damn thing was very annoying. As was that fight between a heavyweight male fighter and a woman who was a hundred pounds lighter. (same time frame) I forget the names. Anyone remember that? Again, annoying.