You know what can really cut down on reaction time and hampers the ability to drive is growing old.
http://www.luhs.org/depts/injprev/Transprt/tran3.htm
Why not make it illegal to drive when you get older? Or require more frequent "recertification" for elderly drivers?
There was an unfortunate incident where a elderly man drove into a farmer's market in Santa Monica, CA. But the fact of the matter is, nothing will be done about in the near future. It is just as likely as banning male drivers under the age of 25 whom are statistically more likely to cause traffic accidents.
We can try to legislate against every single distraction, but the real problem is that we are spending entirely too much time in our cars, and there are way too many of us on the road. So we end up bringing our personal activities that were normally spent at home in the car, since we spend so much time driving. Living in Los Angeles, CA, this is the most painfully apparent.
I have seen some pretty ridiculous things done in a car, make up being applied, reading a book (the driver!), working on a laptop computer. All of which is far more distracting than talking on a cell phone, and it is illegal of course, but hey, it's not really that news worthy anymore, cell phones are the hot topic these days.
In the end, I'm really hoping I'll get to be an old fart sitting in my autodriving mag lev car, talking about how in the old days we used to have to drive by ourselves, and talk with these primitive communicators that had an ear piece you could wear to talk to people while you had to drive with your own hands and feet. None of the direct brain control. Darn those kids and their holographic conferencing, they just won't plot the correct course on the mag lev lane, I miss having a steering wheel...
-Ed