Ah okay fair enough. I'm from the US, but lately I've been playing a game with temperature set in C, and am used to working in C from talking with a bunch of international people in programming chats.

Yeah sub -18C is extremely cold. Definitely not cycling out there. I don't think I've ever seen below 0 Fahrenheit where I live.

Not wanting to is a really reasonable position, as it is with 100+ degrees. Lots of parts of America get that cold for a solid chunk of the year, so if people can't take a bicycle, how would you build a system to accommodate that kind of a load spike?