Why are there elevator operators in North Korea?

Why are there elevator operators in North Korea?

This is the same as China in the 1950s and 1960s!

At that time, science and technology were underdeveloped, education level was not high, and modernization consciousness was not strong! Some people have never even seen or taken the elevator! Can't use it! There is also a full station and the elevator is overloaded. I don't know what to do with it! So, set up the post of elevator operator! Open the door and close it! Call upstairs and downstairs by floor! Please let some people leave the elevator to ensure its safe operation!

Don't talk about it. I heard that when young people from mountainous areas went to big cities in the 1980s, the first thing they wanted to see was Wan 'an taking a train and a big ship! Very novel! Because I haven't seen it! How clever modern people are! I saw it once! You will know what to do!