Brits will do anything except properly insulate their damn homes.
I have had multiple conversations with people who lived a while in that area. Rich, educated countries, modern economies, but they live like they are poor farmers in the 19th century.
It appears that something like 50% of homes are still over 50 years old, which seems to be more than enough for “some subset of brits large enough to be notable complain about the cold weather because they don't have a properly insulated place to warm up in” to have explanatory power.
Were you in prison when you experienced the above?