When they filmed the movie ‘Van Helsing’ in Prague they needed one hundred couples who knew how to ballroom dance. Everyone thought this was going to be difficult to set up, but it turned out that literally every extra they hired could waltz. Back in Soviet days, the country didn’t have a lot of money for sports equipment, but every school had a record player. They taught the kids ballroom dancing for the Physical Education requirement.

Not just Soviet days. Today, it’s expected (although not mandatory) to attend a course on ballroom dance and etiquette around the age of 16. It’s usually not in school PE classes, but evening lessons in dedicated ballrooms or community centers with professional lecturers.

There are also similar courses for adults commonly available. It’s considered a fun hobby for couples.