I hope you don’t think your generation of kids made up rebelling against their parents.  All kids do to an extent. These kids are actually German kids dancing to African American/ Jewish influenced jazz music of the 1930’s and 1940’s.  Not something most Germans would have been doing in the war against the allies(England, France, Canada, America and Russia). But these kids are enjoying the music and moves of that amazing era in history.  If you can’t already tell, I really enjoy history. Your grandfather ( my father) taught history at two of the high schools closest to your house when he was a teacher.  World War II was his favorite era to teach. This movie is called Swing Kids, Enjoy the dancing!