Technology will always arrive at different times at different places. Your area probably got high speed internet and electricity later than cities, and it'll get AEVs later as well. As any technology, it'll target areas with highest benefit:cost ratios first, then incrementally expand. Nothing particularly notable about that and when thinking about the overall development, a 5-10 year difference between tech being available in Toronto vs Yukon is not relevant. I mean, it sucks for people wanting the tech, but that's about it.

Driving in pseudo-lanes is probably much easier than what Tesla's FSD can already do (detect, keep track of, and plan around, dozens of cars and pedestrians), the reason you'll see it last is less tech challenge, but that getting it to work in a city is much more valuable.