A/C in North America is a culture in and of itself. Totally different attitudes. I've met so many Europeans who believe A/C is the devil and is the reason for all their illnesses and refuse to use it past a certain point.
Whereas Americans/Canadians blast that **** 24/7 and haven't developed any debilitating neck problems yet that I know of .
I'm pro AC when temperature gets above 30°C, but in general if I have a choice, I will open the window and switch it off. In some office buildings it's impossible.
AC needs to be good quality and well maintained, then there are few issues. Unfortunately it's not always the case and one can smell that.
Then it needs to be paired with humidifier. That's expensive as well, especially in big buildings, so often left out.
And problem is not cold or hot, it's moving from hot to cold and back. Not everyone can stand that. If you want to do that in healthy way, take sauna and take cold plunge.
Good AC does make dancing more pleasant, but there are events where I need to clean dust and other particles from my airways, black stuff comes out after dancing in those hotels, where festivals are often held. Many people plan getting sick in such events as well. They know it will happen, cause it happens every year. Such is their immune system combined with I don't know, saving on filters and humidifier probably.
So better dance outside or with windows open and slow breeze, if available.
We adjust to warm temperature better than to bad air conditioning.