That’s interesting, I know the one I have now can go between the two and is just defaulted to F, but growing up the one in my childhood home only showed F. I never really understood the numbers in relation to the temp either, I just would notch it up or down a few degrees depending on how cold I was 😂

So here (and maybe it’s just my family?) I’ve always seen the home thermostat set in F, while the weather outside is strictly C. So like my house is set at 70f but if I were talking about outside I’d use C. Which is funny because the thermostat in F also means nothing to me, I just notch it up or down a few degrees depending on how cold I am in the winter 😂😅

Ontario checking in, 100% accurate. Actually I would add home temperature (like the thermostat) under F, but body temperature (like checking if you have a fever) under C. Also we’re so used Americans using miles for distance/speed we’ll sometimes use it in idioms ("They ran out of here at 100 miles per hour!”). I never realized this change between measuring systems wasn’t the norm until I started chatting with Europeans.