Fair point.

The reason is that it was a skating class and the standing people were either instructors or students listening. The ice rink opens early, I believe at 07:00 or 07:30, with the professional skaters starting first. Then go classes - highest first at 08:30, then medium, beginners last. The rink opens to public at 10:00.

There are 8 entry levels, followed by Bronze, Silver and Gold, followed by some national programme for those who want to go professional. My daughter in the picture is at level Gold. My other daughter is at level 5.