text: One reason drivers should not use cellphones while texting and driving is because it is illegal in most states. If drivers are caught using their cellphones while driving they will be forced to pay a fine. Fines can cost from $20 to $250 dollars depending on different aspects. This fine is supposed to intimidate people when they use a cell phone while driving. People need to take caution of their surroundings so there are no wrecks; therefore, if you look down at your phone even for just a second a lot could happen which is why you need to be more alert while driving.