I agree, but I do cue from the audience. And the norms change with the times. These days, household name acts tour football stadiums wearing t-shirts and jeans. In the 80s, every hair band was pretty much in drag. It affects the shoe choices! We play in a few hot, sweaty bars where people are there for the music but are very casual. I wear jeans and a t-shirt to those gigs, with Adidas sneakers, because that context feels right in those clubs. We also play in a couple suburban bars (cougar bars, honestly). The clientele there is older and somewhat more dressed out. I do the same, usually a nicer pair of jeans with a button-up shirt and a pair of comfortable black dressy shoes.