Have you seen what people in "business class" wear? I obviously can't speak for everyone that rides up front but it's just peronal experience and DL
finally came to their senses. DL
's non-rev policy does not offer "upgrades" per say. They clear the nr list from the front of the a/c to the back so it just depends on seniority and what level of priority you use.
They implemented this right after I stopped working over there. Basically, us non-revs were standing out more in the business casual that was required and I believe it was also a morale thing, who knows. It was also I believe to ease the need for gate agents to be fashion police.
What gets measured gets done.