I would go for 18. Sixteen was okay for rural, agricultural life. Because there was not much to run into when you were 16 and stupid. But nowadays - too many cars, too many people.
if we raise the age to 18(which i'm against even though I will have 3 new drivers in the next five years in my family)
How will teens date?
How will they get to work?
How will they learn to drive so that when they turn 18 they will be "experienced".
How can we say "your old enough to get a job, pay taxes, be a parent, join the military and shoot people but not mature enough to drive!"?
Life is dangerous, people(teens included) will always be killed doing just about anything. We cannot legislate total safety and we shouldn't even try.