The way temperatures have been changing in Europe in the past decade, you may not have A/C at home now, but I bet you'll have it in ten years, tops. So will everyone else and their dogs.
As I said, in building that are attached to money incomes, be it hostels, shops or restaurants, it's of course something that can balanced within loses and profits. In a personal home, it will be just eat some of your budget.
And with electricity price on the rise (and thus basically everything in common goods) and salary stagnation on the other hand, I doubt people here will suddenly rush on AC on massive scales. Plus government apparently are pushing to alternative approach, but I'm just discovering that as this thread launched me on the track to investigate the topic.
Personally, I doubt I'll jump to some AC anytime soon. It's just out of reach for my incomes, all the more when there is no basically no chance to see the electricity price plummet while my salary has good chances to continue to stay freezed as it's been for the two last years. And it's not like I feel the most unlucky person in the town, to be clear, my situation is far from the worst ones I can witness around me.
Not to mention central A/C in the North American sense with a air handler & ducts is just never coming to France, it's such an outdated technology and forced-air heating is generally considered to suck there.
I understand the Olympic Village had the same system and many teams brought their own portable AC units. https://apnews.com/article/olympics-air-conditioning-paris-0...
I suppose that you do have heating in the home?