It is anti-texting laws for drivers.
Unfortunately laws are written to mandate common sense. There must have been fatalities in order for this law to be written.
My neighbor got in a serious accident over the summer because the teenage driver was texting his friend and dropped his phone. When he picked it up to retrieve it he ran head-on into my neighbor's car. He is the father of six children and was nearly killed.
I don't think you'd want that happening to you, and if someone was idiot enough to be texting his friend instead of focusing on the road, you'd have his head yourself, guaranteed.
It's shame that laws like this have to be written because people have no common sense and think they can just do what they want when they want with no sense of accountability at all.