What temperature do you keep your house at during winter?
26°C for me. I live with my son & he enjoys wearing as little as possible at home. Cold also makes him feel depressed. I’m alright with both hot and cold.
19.5 on the thermostat, which I'm not sure is accurate. In my opinion comfortable indoor clothes include a sweater or a hoodie, so 26C isn't just wasteful, it's very uncomfortable.