Brandon Cole wrote:
I can't image having 30+ people trying to figure out how to line up.
That's the thing: you don't need to figure out 30+ people: you only need to work out about 5 or 6 people at the most (not all of whom will be there in the 1 class anyway). The rest are obviously above or below you.
To be honest: those 6 or so are pretty easy too, seeing as you most likely went through the ranks with them.
The only uncertainty is if you join a dojo that does it and you have some rank already.
In that case, I'd suggest sitting at the bottom of the belts of your colour until the others invite you to sit above them, which they will usually do when they are used to ordering themselves.