I know that before I bought a cellphone I was quite adamant that I would not talk and drive at the same time. I was quick to become indignant when I saw a driver yakking (I still do when I am a pedestrian). OTH I know how easy it is to do. So maybe a ban is the right thing to implement. Just think the world existed before the cellphone came into being. It surely will do well for the 15-20 minutes one is compelled to drive without another distraction.
Police Get Tough on Law Against Mobile Phones