Yeah, the biggest advantage of sunglasses is they let you instantly spot people at the table who are new to poker/new to live games/take themselves too seriously/watched Rounders too many times. I do have sunglasses/hat/hoodie/earphones in my bag, but besides the hoodie (which I wear all the time, hood down obv), I don't use them unless another player at the table is being an asshole and I'm not in the mood to be subjected to verbal abuse.