I'm in the same age group but will admit dancing isn't a thing that would attract me to the holiday although would have a go (badly) if others were.
The only hols i remember where people had a dance was when there were entertainment on in the hotel on an evening, "treasures of andalucia" & "discover mallorca". Also there was lenty of dancing done on a christmas holiday i did.
Certainly cant remember much dancing on any of the touring holidays i've done.