Many gay men under the age of 30 are totally clueless of almost lost tradition of the Sunday Tea Dance.
...While tea dances enjoyed a revival in America after the Great War, The Great Depression of the 30s wiped them out. Tea consumption was in steady decline in America anyways and by the 50s, tea was largely thought of as something “your grandmother drinks”. Also, nightlife was moving later and younger. Working men and women were too busy building the American Dream to socialize so it was left to their teenaged children in the age of sockhops and the jukebox diner. Rock and roll was dark and dangerous — something you sneaked out for after dinner, not took part in before dinner.
Gay people, of course, were still largely underground in the 50s, but it was in these discreet speakeasies that social (nonpartnered) dancing was evolving. It was illegal for men to dance with men, or for women to dance with women. In the event of a raid, gay men and lesbian women would quickly change partners to mixed-couples. Eventually, this led to everyone sort of dancing on their own.