What aspect of the roaring twenties do you think changed society

The evolution of social mores in the 1920s is probably one of the most impactful aspect of the Roaring 20s.

While these changes were primarily centered in the urban areas of the United States, they allowed people to begin to move past restrictive Protestant moral values and move to a more open society.

This was done in combination with the explosion of cultural contributions made by African-Americans, centered around the Harlem Renaissance.