I went to Nikko on Tobu Line on a weekend day trip in April last year. As the train got closer to Nikko, they decreased the length to two cars. When it got to one or two stations from Nikko, the funniest thing happened. More people waited at this station, and Tobu employees started pushing passengers into the train.
This is in the country in the middle of nowhere and far from places like Kawasaki in the morning.