We should watch some of the states that are (or are considering) increasing the requirements for training to ALL novice drivers, regardless of age.  I am hopeful we will see a reduction in crashes and convictions in those states.  Remember, however, that it will take several years to be able to see any potential reductions in trends.  I am all for increasing some of our GDL requirements to cover 18-21 year olds, but it will be a big effort.  There might be as much push-back as there would be benefit.  Let's get some data and make good choices.