Do kendo practitioners wear kimono for embu, or does anyone besides koryu? Why?
Do kendo groups actually do embu, per se? It seems like the kind of thing that nobody would pay attention to because they are there for the matches.
I think I was just saying that, just because a group dresses up for embu (have you seen the Shumpukan at embu?? Or Yoshin ryu naginata??), doesn't mean they dress up for training....and doesn't mean that the way they dress during training isn't subject to the traditions of that dojo.
It's all culturally contextualized....