Right, people of ALL ages who go to a 'jazz club' go to LISTEN TO music, not dance to it ... it is more about music appreciation ...
One problem I hear mentioned is that there aren't places to go to for the 60 +++ crowd that still loves to dance ...
I've looked into trying to rent a hall and run dance nights like Donny did (does?) in NJ, but it is such a hassle with insurance, 'cabaret' licenses, etc., etc. ...