People with a bad attitude need to just stay in the right lane because the left is for "passing only" on most interstates. I have people pass me all the time and I am driving 80-85 in West Texas.
Couldn't agree more - fortunately, at least here on the portions of Interstate 40 & 10 that I drive on, most people are courteous & show good lane discipline.
A scary opposite is when I am going west, I-40 ends at Barstow, and pick up the I-15 going into the Los Angeles basin. The Californians, at least in that area, are a pretty wild bunch - following too closely, passing on the right at extreme speeds, and acting like a directional signal indicating the need to change lanes, is an offer for combat!
And yes, I agree - staying in the right lanes except when passing should be mandatory - staying out in the "inner" lanes and not keeping up with the flow of traffic generates what engineers call "traffic friction"...increases the likelihood of accidents.
I personally don't like to cruise much over 65 mph when towing, for several reasons, having to do with trailer control, tire and wheel issues.
Yes, I have driven passenger cars in west Texas, where there are sections where 80-85 mph is not particularly dangerous. Once you get above that speed, and equipment failure and/or need for a panic stop is, well...let's just say "not funny".