While the purpose of the video was to demonstrate the horrors of air pollution, it also had a different effect. Through interviewing people of all occupations and ages, the video showed how people live in the same way as anywhere else. They all go to school, attend work, swim in rivers, walk around without face masks. This must have surprised the narrator and he must have included this aspect of daily life into the video to show the people acceptance/ignorance of the issue.
To view the video go here for part one and here for part two.