I believe this is not an issue if the school adopts some reasonable measures regarding gradings, junior ranks and class types.
Respect should never be a problem, too, as most should agree that everyone must respect and be respected equally.
But we're also taking about concrete and physical things like lining up and having a more senior student helping other students.
I couldn't show up in time in the mcdojo threads, but I believe there are average schools with "mcdojo practices" (sometimes adopted even kind of forcefully). The one where I train is just like that.
So while I wouldn't care about the lining up thing, sometimes it becomes ridiculous when the 13/14 yo boy with a full black belt (instead of a junior one - and with less training hours than some adults in 1st and 2nd geup) serves as reference to less senior and but older and more skilled students just because of the color of his belt. Things become even more awkward when that same young black belt is asked to lead warming ups and stretches when he himself can hardly do them, just because he has received his black belt earlier than some adults or older teenagers.
As I said, this shouldn't be a problem if the school handles black belts in a reasonable manner (ie. not asking only for time criteria, but also skill - although unlikely to happen, would be no problem with a highly skilled youngster), and the adoption of junior (poom) black belts would also make things a little less complicated. But are all schools like that? Mine isn't, and I wouldn't leave it to the others in my city, that usually fit much more the mcdojo label.
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