You know, that's actually a great question. The school I attend is relatively large, with nearly 600 students in total (if you count the after-care programs and the summer camp programs, along with the conventional evening taekwondo classes). We have 4 schools here in the US but we're affiliated with about a hundred schools over in South Korea (the "MBA" franchise in South Korea). Our busiest class during the week is the Wednesday evening "All Belts" class in which we can have as many as 80 students in a class. (Though a class size of 30ish is more typical for us.) During our busy classes, the use of
belts certainly helps us divide into groups quickly for curriculum practice.
Being a large schools offers us some advantages:
- Of course there's the obvious economic advantages: the economies of scale. We can afford to do things like host big regional tournaments by virtue of our size (the D.C. TKD Open & Kukkiwon Cup is coming up soon) or even have large production runs of our own internal brand of uniforms (네이버 지도).
- We're large enough to have a number of "special teams" that help with longer-term student retention, by maintaining students' interest past black-belt (a demo team, leadership team, competition team, tkd video club, etc.)
- We have a "deep bench" of instructors, so a big chunk of the school can go away (like, to a tournament) while still leaving a good-sized cadre of instructors at home to carry on.
- Our adult population (both practitioners and parents) is so large that we also have a "deep bench" of specialized skills we can draw upon (IT people, EMTs, photographers, etc.) to support our many projects.
- During black-belt testing, our size makes it fairly easy for us to find good panels of outside masters to serve as our judges.
- And of course the large size results in a very social dojang - peopled tend to make many new friends at our school.
Of course a number of things on that list fall outside the core objective of having "good taekwondo". But the question I'm rolling-around in my mind is: do smaller schools inherently have an easier time of achieving good taekwondo? I'm inclined to think that being small would present its own unique set of challenges, when it comes to having "good taekwondo".