It's actually harder than just using celsius, things like my oven and fridge are in farenheit without a way to change it, along with most cookbooks and recipes here
Tried to change my weather app to celsius and just got frustrated because i know what 60°f feels like but didn't have an intuitive sense of what celsius felt like so i just got confused
Ultimately it's a lot if effort to just put a communication barrier between you and your fellow american