They’re Japanese. They love order.
In America?
Some flights would have a similar outcome. Others? I’d hate to be on a flight to Las Vegas or Orlando ...
In the US the aisle would be clogged with volumetrically enhanced persons.
In a related story, Southwest is giving obese people who self-identify as “superfat” a free seat if they ask. Can imagine being behind one of those folks as they try to squeeze out of an emergency exit and the plane is on fire?