Lidia Bastianich is famous for wearing her gold bangles/bracelets while she cooks, and word must have gotten back to her about viewer complaints, because she addressed it on a show. I can't remember why exactly, but it was something very sentimental.Never, ever wear long sleeves. My hands are bare as well. I can't understand how Chefs cook with all their rings and bracelets on either. It's a turn off for me.
Personally, it doesn't bother me. People online in the comments sections of videos seem to make a game out of nitpicking cooking show "mistakes," like, "OMG!!! At 3:17...did she just touch her hair? BARF!!!"
Home cooks touch their hair (and a lot worse) every day. The only jewelry I wear is a simple thin gold band, but I don't take it off to mix meatloaf or anything, but that's a little different than a bracelet.