I think it’s the same more or less. Some of it depends on the part of the country in my experience (I’m in America).
Some cities yield the right of way more willingly. Some cities have more aggressive drivers.
Where I grew up outside of DC you better have your foot on the gas if you are in the left turning lane when the left hour comes on. Only 4 cars are going to get through, and the line could easily be 15 deep. That’s 40 years ago.
I remember being in Nashville with friends, and the driver needed to ask directions. She stopped in the middle of a road with no traffic at the time, and asked an officer who happened to be there. While talking to the officer a car came up behind us. She seemed to feel no pressure to finish up her conversation quickly. I stifled myself. If I had been the driver behind us I would have likely been a little annoyed. I couldn’t help but think that was a Southern thing, they seem to always finish with the person in front of them, no matter how long it takes. Not just regarding driving, I mean in many situations.
For as long as I can remember people were warned to be careful with your anger on the road, the other driver might have a gun.
Where I live most people are patient, helpful, and smiling, but most people here are retired, and can afford the life they live comfortably.
I do think politics is causing some added adrenaline in people’s bodies, and I think money stresses also have made people more edgy, but I think that’s been progressing over the last 20 years.
Where I live I have friends making $10k a month doing nothing but having fun and watching their money grow. They aren’t very stressed or very angry.
Want people to calm down? Money, health, shorter work schedule, flex time at work. That’s my answer.