I think no amount of training will make problem drivers pay more attention than they do now. *Drivers' brains filter out non-threatening scenery such as bushes, mailboxes, dogs, pedestrians, bicycles and motorcycles. *Some filter out more, some filter out less. *Some even filter out small cars.
Moving fast on crowded roads takes a lot of mental effort and very few people are as aware of their surroundings as they need to be. *Especially if they're not familiar with the road. *And even more especially as they get older. *With the population aging and more dependent on cars than ever before, roads will be the killing fields of our future.