Suddenly they discover the attractions of clean restrooms, prompt service and food served hot.
I know it is not true of all McDs but for the first ones in country it is.
Have witnessed it in several places.
When McD’s opened in Moscow people would line up all day. It took them a couple of years getting the supply chain up to snuff before opening because the Soviet food industry was a nightmare of horrible logistics and zero concern for product quality and safety.