Drivers face many types of distractions while they are behind the wheel. It is up to each driver to make sure that they focus on getting to their destination safely. When drivers don't do this, they can cause accidents.
Imagine driving through Rolla on Friday afternoon. You finished work early and you have a few extra hours of free time to spend however you see fit. Unfortunately, your plan for the rest of the day completely evaporated when another driver ran a red light and plowed into the side of your car. Now, you have to deal with a whole mess of problems.