Rules of the Road?

So the longer I spend staring out the car window, trying to figure out the rules of the road, the more confused I become. For starters, there are no stoplights that I've seen. I can count the number of stop signs I've seen on one hand. Plus, there's no line in the middle of the road and I've definitely ridden on both sides of it. The speed limits are definitely optional...my mom sometimes drives 120 km/hr in a 60 km/hr zone. I've also never seen a cop pull anyone over, have sirens on, or do any type of enforcement. I'm just kinda glad one of AFS's 3 big rules is no driving, because I'd have no idea where to start!