Now I don't want to overgeneralize, so let me describe how I got that metric. I know that California houses somedamn fine drivers. Anyone who can take Laguna Seca gets props. But California has a lower percent that grossly biases the state average.
Case in point: On the way to work this morning, there was a driver who had been tailgaiting me. After hitting some traffic, the car in front of me put on his brakes, so I put on mine. I had to adjust and brake harder as he did the same in front of me. After I got the stop in full control, I looked in my rear view mirror and the guy who had been tailgaiting me was in the process of swerving into the guy in the next lane because he hadn't left enough space behind me and figured it was better to go into the next lane blindly. He did manage to stop, and the car next to him managed to avoid him, and he did give me plenty of space after that, but that's my california drivers suck story for today.