The U.K. has a humidity problem that proper air conditioning helps keep outside, where it belongs. Sadly, apart from some newer office buildings, high-end retail shops and fancy hotels, few locations there do A/C as God and Willis Carrier intended.
Of course, the French are right across the Channel, making the Brits look like titans of indoor climate control.
That’s rather out of date. A/C is now pretty much standard in new public buildings, offices, theatres, stores etc. It’s only in private housing that it’s still relatively uncommon.