Problems existing in overalls of western food department in five-star hotels

Oh, I have been engaged in western food for so long that I have never seen anyone wearing short sleeves. In fact, a very formal restaurant should not have short sleeves, which would be very informal.

It seems that all the western restaurants I have seen are long sleeves, bow ties and aprons, and some are suspenders and white shirts. In fact, as long as they are properly dressed.