It occurs to me that the whole idea of fashion and tradition and the juxtaposition of them is a bit of a red herring.

As mentioned before fashion changes with the wind and seldom outlasts a generation. But beyond that (or maybe because of it) fashion is much more narrow and nuanced.

After all, a "little black dress" is still a little black dress no matter how short the hem. A doublet is still a doublet be it Sherrifmuir or Montrose. And a great honking hairy sporran is still a sporran.

The point is that fashion may dictate the shape of things but tradition dictates the thing itself. A great hairy sporran may no longer be in fashion but a sporran of some sort is literally de rigueur with a traditional kilt.