I take a more middle-of-the-road philosophy in my house, with primary reliance on space heaters for room-by-room heating. Why do I care if the kitchen is 72°F a

I take a more middle-of-the-road philosophy in my house, with primary reliance on space heaters for room-by-room heating. Why do I care if the kitchen is 72°F at 2pm while I'm working at my desk in my office?