Jean de Rochefort wrote:
that is disloyal. in an honorable exchange, he gives you his knowledge, you give him what you know he wants for that knowledge: allegiance. If you do not wish to give him allegiance, then you should not accept what he is offering for that allegance: knowledge.
I could not agree less.
First off, nobody has all the answers. I realize there are things I cannot give to my students, experiences I simply do not have. That in no way invalidates what I am doing on the mat.
The open exchange of concepts and ideas...sharing...that is what leads to knowledge. If a student (no matter how much my junior) has something to offer, regardless of where it came form, I want to explore it so I can grow and develop.
If a student of mine finds something else out there that suits them better, then I would encourage them to explore it. My Aikido is still my aikido, so the way I see, If the student leaves, what I had to offer was not for them...