Bruno@MT
Senior Master
I was wondering though, Is it right to wear a BB from one type of MA that you earned, to another dojo and a completely different MA with a different association where you are a white belt?
Not my place to decide, I was wondering, therefore, what you think about it? What would you do? should he have worn his BB? Is it right?
No it is not allright to wear a BB in a class for which you don't hold that rank, imo. If you are a 6th dan in ninpo and you start TKD, you wear the white because that represents your TKD knowledge: zip, nada, zilch. It is alright to wear whatever you earned in your primary art in certain settings like MA seminars etc. But as a student in a class, you wear whatever you earned in that art.
If you want to wear black in a shotokan class, then you had better earn that. If that is too much to ask, your ego is getting in the way of learning. If you wear any belt in a system, you should understand and be able to explain to lower ranks everything that goes with the belt.