Why do we no longer unexpectedly dance in coffee shops a la Jean-Luc Godard?

I adore this sort of dancing. It's silly and simple and you feel as if you could just jump right in and snappity snap get into the groove of things.

My all time favorite dance scene of course is Audrey Hepburn in "Funny Face" when she is in the "Beatnik" bar in Paris. Oh, Audrey, how I love thee!