OK, hows this.
Hoisting and lowering the ensign is a ceremonial duty and should be performed in the appropriate dress. Even aircrew wouldn't stoop to parading down the local high street on a freedom of the city march wearing green romper suits so why should the ensign ceremony be treated any differently?
From my position on the sidelines I don't have an issue with the wearing of flying suits for day-to-day work or pre-post work activities (like eating supper) as it is a uniform like any other and the logistics of the situation often demands that a sensible view is taken to the wearing of uniform, though that does first assume that the wearer has actually been or is going flying that day and didn't just pick up the first thing that came to hand in the morning
