Eh. I'd rather have real driver training required before a license is issued. Some countries do.
In the US, my driver's education consisted of driving in a car with an instructor and two other students in the back (or being in the back while someone else drove). We were required to drive five mph under the speed limit at all times.
So really, I learned how to drive when I got my license.
I'm 51. I was hit two times in my early 20s, but I've not been involved in an accident since (and so never has been my fault). But it's not because of the driver's ed.
Also, I'd love for science to look at what ages (or medical conditions) affect poeples' ability to drive and start testing based on those things. If that means taking tests now? Sure, fine, let's do it - I know I'm still fine.
But it's also hardly an age thing....... lots of people just don't care to learn how to actually drive defensively. :|