As someone in the more rural bits, I’ve ridden my bike on 2 lane non marked roads a few times - however, the amount of social media complaining in my town is absolutely appealing when it comes to cars. People complaining about speeding, then complaining about people going 2mph under the speed limit. I do my best to stick to trails or sidewalks because if you happen to inconvenience anyone - they might make it a point for you to have a bad day. And that’s sad.