I agree. The last time I parked my hat on a hat rack in a restaurant while I dined I returned to find a couple of pre teens dancing like Michael Jackson with my hat. When I retrieved it from them they said they thought someone had left it there. They obviously had no manners & didn't know what a hat rack was for.All this talk of hat racks, but would anyone really leave an expensive hat on a rack next to a restaurant door? No way I'd do that in today's world.
In lmost chain restaurants today the male waitstaff wear ball caps. I figure I'll remove my hat as a sign of respect when they remove their caps upon serving me. But in all honesty I'd rather they wear their ball caps than a hair net, or worse yet I should find a hair in my food. And as someone has already pointed out I find ear gauges, piercings & tattoos among waitstaff & other patrons much more offensive than I do hats or caps being worn.