Re: Do you fold your Sensei's hakama?
Some teachers expect it, some don't. The idea is that having someone else fold their hakama frees the teacher to do other things, like answer questions after class.
IMO the idea of junior yudansha having their hakamas folded for them is ridiculous. But then, everyone in the ASU wears one after their first test, so yudansha aren't up on the pedestal that they are some places.