Nothing wrong with those uniforms, DP.
But that's taken in Canada, indoor and likely in winter.
You want to attend three hours long lunch function on an opened terrace in Bahrain in summer in those black, wool uniforms? BE MY GUEST, but I ain't going under any circumstances unless I am wearing white cotton or breathable material!
Also consider that we would then look (in black DEU's) totally goofy standing besides every single other nation's sailors wearing their high-end whites.
I am going to go one better: We can probably use a naval khaki for summer undress.
I know the army has hives every time you propose a new uniform. In the Navy we believe in dressing properly for all occasions. It means options.
I understand where the Army comes from: You have to carry your stuff on your backs. We don't - we have lockers (albeit small - but still).
Anyway - we are never going to resolve these issues here. The only thing to be said is that the choices and numbers of different dress of a given element should be left to that element, not the whims of the other ones.
And, Remius: State dinner, official dinners, evening cocktail/reception with foreign member of government level or high military command level guests are 1A or 1C functions. In tropical climes, that's the high collar white, with medals. All the Navy is asking is making it an issued piece of gear, and change designation from 1D to 1B for the version with ribbons. You could keep the numbering (1C and 1D respectively), and as long as issued - would have no problems.