This isn't the reason at all. Even in expensive Eurocities they don't rush you out the door. In the center of Amsterdam it's sometimes difficult to get a waite

This isn't the reason at all. Even in expensive Eurocities they don't rush you out the door. In the center of Amsterdam it's sometimes difficult to get a waiter's attention for the check - if you don't take the initiative you'll be there for an hour. And in cheap American cities they also try to push you out the door.