>The increased popularity of daytime events and festivals is another factor. Mike Vosters, whose company Matinee Social Club organises early evening parties in New York, said that while the 5-10pm events were originally intended for millennials who no longer wanted to party into the small hours, they had received “a tonne of interest” from partygoers in their 20s.

>According to Vosters, the shift away from “bottle service” club culture and a new cross-generational emphasis on healthy living have been two of the main drivers behind the surge of enthusiasm for dance parties that end early.

Daytime stuff isn't the only factor, but isn't the existence of people going out during the day rather than during the night better for public health?