This has seemed so obvious to me forever, but I remember two instances very clearly that illustrate how much people generally hate it in the US. Once, (in Penn

This has seemed so obvious to me forever, but I remember two instances very clearly that illustrate how much people generally hate it in the US. Once, (in Pennsylvania) there was construction coming up, with maybe still half a mile until the actual cones to merge. This one guy in a massive truck didn't like that people were using both lanes so he straddles his truck across both lanes causing no one to be able to pass on either side. Second, (in Colorado) there were signs that construction was coming up in a few miles, and the right lane would be closed. So, I was riding in the right lane, passing a massive line of cars in the left lane, getting flipped off the whole time, only to find out there was no closed lane. The signs just hadn't been taken down yet. So I was being flipped the bird because I was using a lane that was fully open. I think people just don't like feeling that other people are "getting ahead of them", in life in general, and especially in traffic.