I am in favor of the no hand held cell phone laws. Driving over the road in the 18 wheeler, every day I see somebody getting stupid. Like driving 50 mph in the left lane in a 70 mph zone. Swerving.
About a dozen times a day I see this, and 98 percent of the time it is somebody texting on a cell phone.

I oppose seat belt laws. If you don't wear a seat belt it has no bearing on how you drive.
But hand holding a cell phone uses a good chunk of your brain, and it makes you a worse driver. It makes you a menace to other drivers.