Infanteer, you are absolutely correct about people continuing to "fire down the wrong lane"; this thread may have run its course.
My comments were intended originally only to respond to the idea that we don't need DEUs - one poster suggested replacing them with scarlets or some other non-specific "dress uniform", another suggested using combats. Neither one has given a compelling reason why, nor responded directly to my explanation.
There are a few in the middle ground like yourself who have made useful suggestions. The Marines, as you and Matt pointed out, do have a useful model, and I think by and large we already follow it. A "business suit", a sweater for "business casual", good combat gear (MARPAT and CADPAT are of a family, if only we had those nifty squared-off covers, but of course that would be horrifyingly American), and a smart ceremonial dress.
We will never, ever have a "Canadian" ceremonial dress, or at least I hope not, as there are indeed too many regimental traditions at stake. You'd never get the armoured, infantry, Rifles, artillery, chaplains, clerks, engineers etc. and et al to agree on a colour, much less a common pattern. I like things the way they are now; the "have" regiments like the Glamour Boys in Toronto can keep their very British uniforms, others can go with patrols or coatees, as they can afford them.
I think we've come full circle. I also agree that the colour of the DEU could be lightened for a more "Army" look, but reinventing the wheel there is not necessary either since the colour is firmly established as a tradition (meaning we've done it twice, right?
literally, we have, the CF Jacket and then the DEU Jacket).
I could get behind the suggestion of adopting a blue jacket across the CF, even with the dreaded stand up collar. But for the simply reason that it looks good, and with the promise we would still have DEUs. In fact, blue patrols have probably been far more common than any of the "ceremonial" uniforms described here. They were also common to all corps and regiments; the blue forage cap had a coloured band to designate the affiliation, and as Matt pointed out, the pants could also have a coloured stripe. You might even claim that it is "traditional". I get the feeling they were never intended as parade dress - the Royal Regiment of Canada expected officers, WOs and Sgts to own it as mess dress before WW II, for example. This very thread revelaed that scarlets were considered the No. 1 dress for them. I presume junior NCOs and privates did not own such uniforms, nor that it was ever universal across the Army.
In any event, the Empire is dead and we have been quite good at designing our own uniforms to suit our own needs for at least half a century.
We have a young Army; whatever we end up doing vis a vis a "national ceremonial uniform" will simply be making up things from whole cloth, no matter what the final style and pattern. And guess what, it's our right to do so. Just don't expect to be able to justify it on any logical grounds, as you will be on as shaky a footing as you would be trying to justify the Garrison Dress.
Anyway, that's probably enough from me for one thread, unless anyone really wants to go round the mill again on why red jackets are not "traditional" or why collars and ties were a privilege the British Army begged to have....