I don't think you realize how old buildings work and that majority of people in europe live in apartment buildings often 50+ old and they rent it.

Would love to see you convince the landlords to refurbish the building to use expensive heatpumps when gas is already in place. Also heatpumps just like any other heating solution sucks without insulation.

It would be better to look at new buildings and you will find out that yes even europeans when building new get AC/heatpumps and solar and all the good stuff.

The thing is - I as european don't know a single person who has or is building a new house. I know few that live in a house but most prefer appartments.