I once saw that map with the caption, “United States resembles middle school dance.”

I’m not opposed to cell phone driving bans in principle, but I’m not convinced it makes sense to single out cell phones. Changing radio stations, talking to another passenger, talking on a headset, eating, and lots of other activities also impair driving. Plus the ban needlessly forbids legitimate activity, like calling for directions when lost. I’d rather just see stricter enforcement of reckless driving instead of such a specific ban.