And since the white season can take up to 6 months, not only are people experienced with driving in such conditions, but they are also choosing their vehicles according to their winter driving experience and skills.
We'd like to think so, but I live next to a stretch of highway 401 that's been shut down about 3-4 times this week due to major accidents. There was a 70-ish vehicle pileup yesterday, and a 15-20 vehicle pileup Monday. I've driven past something like 15 vehicles that went off the road the few times I've went out since Monday, and there's many more tracks in the snowbanks and ditches where someone spun off and got hauled out.
The roads haven't been great, but you can generally get around okay if you aren't doing anything stupid and keep speeds reasonable (which, actually, isn't much below the speed limit), and be aware of the crazy amounts of blowing snow.
But people are doing stupid, stupid shit, getting into accidents, and I'm pretty sure most of them are Canadians.