Christopher Li wrote:
Well, he never had a dojo of his own, so 20,000 would be quite an unlikely number. You could check through the enrollment books and make lists, I suppose, but the fact that he had relatively few regular students is fairly well documented through interviews with his students and son, and by books like "Tomei na Chikara" (in Japanese), which gives a fairly good picture of what he was doing. If you think about it, 30 instructor level students is a fairly large number for anyone, but even more so for someone who never had their own dojo or any kind of established organization.
When I made my original point, it was not that Sokaku Takeda rarely gave out the kyoju dairi but that in Daito ryu, it is a rare thing to have the kyoju dairi. I based my idea on the fact that Daito ryu is an art that takes decades to learn because of its comprehensiveness and that in light of that O Sensei couldn't be compared to the modern frauds who just set themselves up.. Your point seems to be that thirty instructors over the span of Sokaku's lifetime isn't that rare. Should then I rephrase and say that O Sensei studied Daito ryu and other martial arts over a 21 year span (albeit for short periods of time) and therefore may have put a little more into his art than the modern frauds?