You might factor into your model of the mainstream media that few people find the behaviour patterns of decrepit old farts newsworthy.
Youth are early adopters, and many youth and young adults lack the judgement to step back from the new stupid. Also known as a sex drive. A young adult using text to A) get laid, or B) indulge in the fantasy that you might someday get laid is not worrying that taking a driving license away from an 80 year-old widow with failing eyesight and reaction times deprives her of her last vestige of independence. "Get out of my way, old bird, I'm trying to get laid. #horny"
SMS accident template
Two young adults are stuck behind some slow-moving great-grandmother, but neither notices initially since they are both busy texting and the slower speed makes it easier to divide attention. The man is writing a shorter text and looks up first, sees that he's going to miss a major light because of the slow-moving old bird two cars ahead, but has just enough time to make an abrupt lane change into an open space and gun the intersection. Young women in front finishes her text moments later, decides to make the same move (with less testosterone) sees the same gap, but doesn't take into account the asshole multitasking male who was driving behind her one seconds ago careening into the same opening with twice the acceleration.
Asshole male finishes his abrupt shoulder check and swings his head forward just in time to sense his impending impact with the young woman making the same lane change in front of him. He tries to protect his precious chrome bumper by swinging yet further around rodeo style and clips a bicyclist in the oncoming lane who had moved inside for an upcoming left turn.
It's a lot like wifi spectrum. If you're the only driver on the highway who texts, you enjoy the protection of every other driver having their eyes on the road. But then other cheeky drivers start to behave the same way, and soon you experience packet loss. The problem on the road is that some packets are more fragile than others. How come the car wash is out of service? Because the drain is clogged again with little strips of Lycra.