[ItendToDisagree]

To be fair it probably always has been the leading cause. Especially if you include things like yelling at your kids to stop messing with each other, day dreaming, etc. The issue isn't that it is dangerous, the issue is that it is selectively enforced.

Also, regardless of the level of criminality, driving infractions can be/are selectively enforced. Being pulled over for being distracted can quickly lead to being arrested for some other offense, or for the police to search your car, or even for them to claim you were aggressive and shoot you dead.