I like to think I was way ahead of my time... Back in college (82-86), when I was too lazy to wash my hair before 8:00am classes, baseball caps were headwear of choice, since i wore/wear glasses, I hated the brim, because it always bumped my glasses, so i wore the cap backwards... It was a look.
Now, it doesn't bother me... Just... here's a personal pet peeve of mine... You are indoors, especially in a restaurant... Take your dang blasted hat off
Other than that - -I don't care.