1) The same seating appears in both Toronto and Denver airports - same design, shape, and color. You would think there were more options in the manufacturing of airport waiting room chairs. Apparently not.
2) The arm rests prevent travelers from sleeping in the chairs. If your flight has ever been delayed several hours or canceled, you would sympathize with the travelers who want to lay down and rest for a few minutes. These seats prevent us from sleeping! Ridiculous!
More information as I visit additional airports...