There are peoples who are busy in their life.. And they had to work with sole responsibility.. They have to prioritize phone calls or they may miss something important resulting in their bad framework in society.. Instead of making it illegal we must develop some new techinques which may make driving safer.
That's what texting is for. I'm sure nothing is more important than their life. All of those " Important" calls people are afraid to miss because of their " busy lives" can wait. Sometimes you have to put others before yourself.