1) Test people’s IQ when issuing licenses. Too many drivers don’t understand basic signs/rules. If you can’t figure out that you should actually stop on a STOP sign, you shouldn’t be driving.
2) Test people’s confidence levels behind the wheel. A lot of accidents are caused because of unnecessary panicking in simple situations. Driving too slow on highways is just as bad (if not worse) than driving fast since it’s the difference in velocity that kills people.
3) Re-test people every 2 years at least. After getting licenses, people become complacent.