If there are so many bad drivers on the road, why are they there?
How are they allowed to pass their driver's exam?
If they're not licensed, how are they allowed to drive?
Why are the standards for getting a license or getting on the road so low?
The answer is simple, there is no alternative. Socially the thought of an alternative is considered to be looked down upon if it is even there at all.
Public Transit and Walk-able Infrastructure are fantastic alternatives for people who should not, could not, or would not drive. And with alternatives to driving in place, standards for driving can be made to rise without alienating the population from traveling.