Why do the majority of canadians live so close to the united states border?

The northern parts of Canada is extremely cold and living there is very difficult. Think of that as Alaska. Not a lot of people live up there because of how cold it is. Also food is low and electricity is hard to get up there because of the harsh snowstorms. Hope it helped. I'm a 7th grader and I love Geography so if you don't believe in this and want more of an explanation message me through

Geothermic gradient is the rate of increasing temperature with respect to increasing the depth in the earths interior. away from tech tonic plates boundaries, it is about 25-40 c/km (72-87 degrees f/mi) of depth near the surface in most of the world.