In Sweden, because of the crazy electricity prices, everyone is discussing right now how warm they should keep their houses. The idea is that a good citizen should save energy and therefore let the house get colder (also, to be "green" of course - but nothing like 5x more expensive energy to get people saving). They asked some politicians, most of them were saying between 19C and 21C.. one guy even said 15C, which everyone thinks is BS :D

Discussion of what temperature a house should be is preposterous. A well-insulated home would obviously use less energy to keep a comfortable temperature than one with drafts all over.

Discussion should focus on energy budgets or total energy use, but that may be hard to conceptualize for the average Sven.

It's all about appearances. Everyone is now driving Teslas and electric Volvos. It's easy to make "efforts" when it shows your "virtuousity" or at least in your head, makes others admire you. You're never going to see rich people moving into much smaller homes that require 1/10th the electricity, which would actually contribute much more significantly to avoiding climate doom.

In Minnesota, New York, and some other places in the USA, 16C indoors isn't uncommon. I turn the heat down at bedtime and my room will be 13C when I wake up. But we're crazy and just like to prove we're tough, so...