By far, the most important thing in a moving vehicle is a fully-functioning human brain.  Why don't regulators push sensible mandates, like...uhh....gee, I don't know....maybe laws with teeth that prohibit cell phone use, texting, reading, shaving, applying makeup, and other totally distracting driver behaviors that happen all the time.  Statistically, drivers that practice these behaviors are more dangerous than drunk drivers.  They should be given one warning, then lose their licenses for a second offense.  These people simply don't have the common sense and good judgement to drive safely.  The continual addition of expensive and largely unnecessary high-tech systems in cars only drives prices higher where fewer people can afford to buy new cars.  These systems are often prone to failure, and are expensive to fix.  If Big Brother is insistent about keeping an eye on all of us, have him put laws in place that will actually reduce accidents, rather than requiring systems that eventually will lead to self-driving cars. 

Far more stringent driving tests should be employed in the USA, as the standard of driving over here is terrible.

The californian driving test is a joke and could be passed by a monkey..people should be awake and aware whilst driving and be able to control the brakes themselves.