I mentioned this in a TKD discussion to make an analogy, and I think I should post it here again because it is at odds with how most clubs are run. The purpose of tuition in a ryu is to continue the ryu. Each generation of students is taught for the purpose of getting someone to the point where they can be granted menkyo kaiden (meaning full and complete transmission) so that there is always at least one person alive who can continue the ryu. If the line fails and there is a period where there is no menkyo kaiden holder left, the ryu is dead. No matter how many other advanced students there are, if the highest teachings are lost, they are lost and noone will be able to continue the ryu. With this in mind, you can also see why -to the teachers in the ryu- it doesn't matter what you get out of the training or why you train. Their primary concern is continuing the line. This also means that if students become a liability to that purpose, they are asked to leave, or not accepted in the first place. The idea that you train for a couple of years and then go do something else is at odds with the reason you were taught. After all, you were taught for the purpose of the ryu. Antyhing else is pointless from that pov. If all high level students were to walk away after a while, it would be impossible to continue. Therefore the privilege of receiving tuition comes with responsibilities as well. Being a menkyo kaiden holder is a terrible responsability. Dave Lowry has written a most excellent article on this subject, which you can find here: http://shutokukan.org/join_the_ryu.html I've posted the first couple of paragraphs because they paint an accurate picture of what I mean. Be sure to read the full article if you are interested in this topic.