All too often I think the discussion misses the fact that there is no alternative to driving for the vast majority of US citizens. Busses, trains, walking, biking, etc are not viable options because US infrastructure & city planning overwhelmingly neglects everything other than the automobile.

Now, it is supposedly a personal moral failing every time someone drives too old, too tired, or too impaired. If trains, busses, & walking were the default ways to get around then this chronic societal problem would diminish dramatically.