I wouldn’t say all for both parties, but there is a sizable portion for both.
We all know the habits of bad drivers. (speeding, bad lane changes, no signaling, cutting people off, stopping too short/late, etc…)
With cyclists, at least in my area, there are things that just makes me wonder if they have a death wish. On an busy road, I’ve seen them ride on the bike-lane line with 4-6ft of space of asphalt on their right to the point where drivers would have to ride the line of the lane on their left, risking a vehicle on vehicle accident. At night, some wear all black with no reflectors or lights; sometimes riding in the middle of a lane with the bike-lane to their right. Some even use the sidewalk, ignoring the bike-lane (I know the fear of why), making pedestrians jump out of way. Sometimes, the bad ones even forget about their brakes and ride straight through an intersection without looking.
People on PEVs and other alternatives can be even worse as the increased speed can make them overconfident. I had to yell at a coworker who was on his scooter, mindlessly oscillating between the left and right shoulders of an expressway. His response was, “I only do that if there aren’t any cars around.” When he asked me how I knew, I told him I was driving behind him, in my car.
Cycling and alternative forms of personal transport are becoming more and more popular, so we need to have a bit of rehashing of the laws (and actual enforcement) for both them and and drivers.