Indeed, during my parents generation, the big cities had huge dance halls that were filled every weekend, if not every weekday too. My parents remember going to those places, as did my in-laws. In fact, I got a gig with a band that had been a major touring group in the past, and mentioned it to my in-laws. They said: Oh yeah, we danced to that band in the 50s. They frequented the ballrooms that dotted the Chicago suburbs.
Of course I credit it to people being cooler back then.
And one of my relatives remembers from her early childhood the music scene in pre-war Berlin. There was an opera on practically every corner. And movie theaters. Those are virtually gone too.
Today I play music for a folk dance group, and they have weekly dances, but a dozen people showing up is a lot.