Well, you've peeled away some of the double talk about martial arts ranks. Clearly they have some meaning to them since we've gone through of trouble of setting up a 10 level dan system. So if rank is a valuable commodity, why shouldn't we ask our teachers to advance us as quickly as possible so long as the transmission of knowledge and skill remains with integrity?
A couple of reasons:
1) Part of rank is taking the necessary time to acquire this knowledge, the skills necessary to correctly put said knowledge into physical application, the ability to transmit this knowledge to others, and the philosophical underpinnings of the art (the principles of the physical techniques, strategy and tactics inherent to the style, and a certain philosophical development of the individual, viz. their internalization of whatever
way goes to making your marticular martial art and art).
2) It's not the student's place to ask the teacher to be advanced. It's the teacher's role to train the student and, when he judges enough progress has been made, put the student through a series of tests to see if they are ready for a new rank (this can be done at a formal testing, through time as a series of tests in class that the student might not even be aware of, a combination of these two approaches or something else). The student should be concerned about diligently practicing what his instructor has given him, not about asking for more material that the instructor hasn't seen fit to give him yet.
3) Regardless of how systematic a particular teaching method inherent to a particular style is MA training will often
appear piecemeal since a person will often not be ready to absorb particular lessons until a certain amount of time is spent physically training and getting the movements ingrained in their physical memory so that their body can perform not just the movements but the concepts underlying the movements.
4) Just because something is valuable doesn't mean it should be, or even can be, imparted "as quickly as possible" if by that you mean
quickly. Often times, valuable things take a long time to acquire.
But then, I would argue that if rank really
isn't important then there is no reason not to award it quickly, or even frivilously. (Which raises the question of: if people don't think rank is important why all the uproar about "belt mills"? But, again, that's another conversation.) Using your example I am still unsure of what would prevent the instructor from awarding his 1st dan student a high dan rank, higher than all of his competitors, or even from preventing the 1st dan to simply award himself that rank. If rank isn't important why not make yourself a 10th dan?
If someone hypothetically has no problems asking his instructor for specific lessons like 'Can you teach me Kurufunfa kata?' why would it be bad behavior to also ask for the chance at sandan, perhaps even a little early?
Asking the instructor to teach them something or answering the instructor's query about what they want to learn? There is a vast difference between those two things. I honestly cannot imagine me approaching either of my instructors and asking them to teach me specific things. It's not my business to set the "lesson plan," it's up to them to to determine what they want to teach me, taking into consideration my previous training, my strengths, my weaknesses, and what they think I would benefit from learning next. I will at times ask them to watch me as I work on a particular pattern, kick, etc. but these are things they've already taught me and I am just asking for further critiquing.
Personally, your example of asking to learn a specific kata (for instance) -
without further qualification - strikes me as being, well, rude.
If my instructors asked me what I wanted to work on during a private lesson, for example, I would offer input about what I would like to practice, but the question itself could be a means of testing me. Perhaps they want to see if
I was aware of what I needed to work on as they were. The question itself can be seen as a way for the instructor to gauge the strudent's advancement.
Pax,
Chris