Some places will dismiss a traffic ticket if you attend a driver's education class to get updates, though you can only do this once every few years. So at least there have been some attempts to get people to update their learning.
Ironically this means the people with the cleanest driving record are least likely to know the current ruleset.
Well, sufficient at-fault crashing will suspended your license, and among other requirements for restoring the license may be traffic school, DUI school, or some other program depending on the reason for suspension, so this is not strictly correct. You can't use optional voluntary traffic school to clear points from a collision from your record BEFORE getting a suspension the way you can with minor moving violations without a collision, but that doesn’t mean collisions won’t force you into traffic school.