Yep...mandatory seat belts started out the same way. Then it became a "primary offense." Now, the FedGov funds the national, "Click it, or ticket" campaign.
It won't be long, it will be illegal to talk to other people in your car or tune the radio.
A friend of mine told me that the number one distraction that causes accidents is tuning the radio. #2 eating. He told me these as I did them, of course. I think cell phone use was something like #4.
If a way could be devised to muzzle back-seat drivers, I might just sign on to such a proposal :-)
PASSENGER; "Stoat, you're going the wrong way"
STOAT:: "Umm...actually, this is the right way, but perhaps not the exact route you're accustomed to."
PASSENGER: "Then it's the wrong way!" (passenger starts to cry)
STOAT: "Okay then, I'm sorry, my fault. Which route would you like to take? We can go any way you like."
PASSENGER: "I don't remember the names of the streets! I just know what the houses look like along the way!"
STOAT: "Okay then, would you like to drive around until we see a house or landmark that you recognize, and then go from there?"
PASSENGER: "No! That's a waste of gas!" (sobbing)
STOAT: (banging head against steering wheel)