Because the small size, it works better on hard floor, not very sturdy on thick carpet

I'm short so plane seats are just so uncomfortable because my feet don't touch the floor unless I slump down in the seat

Ideal for those of us with short legs and having issues reaching the floor on airlines

I am not short and have no issues with my feet reaching the floor when seated, but I suffer from leg/ankle/foot swelling when I travel in airplanes.