Most Seniors self Police their own driving

Perhaps helping to dispel the notion that older drivers are more dangerous, AAA found that drivers 65 and older often "self-police": 61% don't drive in bad weather, 50% avoid night driving and 42% don't drive in heavy traffic. end quote from:
http://www.usatoday.com/news/nation/story/2012-04-02/senior-drivers-AAA/53955116/1

As people get past their 20s and 30s and get some real survival skills going on multiple levels from working, owning businesses, dealing with marriage and families and kids and grandkids and finding ways to survive it all they then tend to self police themselves because they have become wise through their experience to know to do so. Likely bad things happen to seniors when they don't self analyze their physical and mental states enough when changing medicines or during the deaths of relatives or friends which tend to  increase exponentially after anyone is 40 to 50 years of age. Dealing with illnesses and deaths of loved ones or themselves likely is the single biggest cause of elder driver mishaps.