To be fair, I'd wager that the vast majority of Americans live, work and travel within 100km of a gas station at all times. That number could be pushed even higher if you include distance from any ordinary electrical power outlet that could theoretically be used to charge an EV. It's true that parts of the Canada and the US are very sparsely populated, but EV adoption could happen (and is happening) across much of the region anyway because realistically it's still only a few people who regularly spend their lives hours away from any kind of service whatsoever.