they dont wont to wear a hat because it ruins the moose on the hair and where would they rest there sunglasses if they were wearing a hat. All due to the self entitlement group in the business. It is also a way management uses to diminish the professional appearance of a pilot to the traveling pilot. If you look like a bus driver you are looked upon and treated as such. Same goes for the F/A's. Just ask them about the disrespect given them on a flight.