A lot of Europe rarely has a need for air conditioning. I'm in Norway, so I'm an exception - I generally only want it a couple weeks per year, if that. It'll be more widespread here, I think, but that is more because of the popularity of heat pumps, which come with some cooling.

Further south - England and Poland and all those coastal areas - are tempered by the ocean. Summers just aren't as hot.

Even further south - Italy and Greece - air conditioning is common. You know, because it is hot there. Further south = hotter summers = air conditioning. Further north = moderate summers = little cool air needed.