Cell Phone Use is not necessary in vehicles.  In the past the economy has not had to deal with mobile phones in cars and has been fine without their use in cars. There is no great loss in liberty or freedom when you are unable to make a mobile phone call. In fact, if you do have a pressing need to make a call, all you need do is pull over and park the vehicle, which is often not a great problem.  Further, people adjust and will adjust to the inability to use phones in cars. When the restriction was implemented in California, people were simply able to give up their phones because it emerged that they were not truly necessary. [1]  [1] “Editorial: Cell phone law worth pain.” Examiner. 3/07/2008