Excellent article.  The safe gun handling rules need to become habits; actions that are second nature.  Also, we give "toy guns" to our children in the form of items like squirt guns which encourages and ingrains the incorrect habits, i.e. pointing and shooting at people.  We then need to them teach them to "unlearn" those habits.  I, for one, would encourage teaching and testing young adults correct gun handling with a fake replica gun.  They must first consistently demonstrate safe gun handling techniques before they are allowed to handle a real gun.