a lot of others have good points but i also want to point out, at least in my area, road rage and impatience are major contributors to bad driving in my area. if you're going the speed limit, it's too slow. if you're going 10mph over the speed limit, it's still too slow. you could be going 20 over and some asshole behind you is still going to tailgate you and swerve into the bike lane to get around you. i've seen people go into oncoming traffic *specifically* to run a red light around those who are slowing down or stopping for the light. it's not even a lack of education here at this point, these behaviors are intentional and deliberate and ruin it for those who enjoy driving and are good at driving.
every day here there are several news reports about major injuries or deaths due to bad driving, and our cops are contributing to it as well. i stg weekly there is a report about a cop driving directly into a wall or someone's house or something. it doesn't help when the people who are supposed to be enforcing driving safety are contributing to the bad driving.