It might be time for a regulatory mandate here. Phones have to go offline if they're running more than 15MPH unless docked or handsfree.
I can't believe i'm calling for regulation, but someone will. Question is do we get ahead of it now or before a new Congress does?
I also feel like pointing out this article says there were 3,000 deaths from phone use. Well, there were 40,000 from firearms in the US https://www.nytimes.com/2018/12/18/us/gun-deaths.html. PRIORITIES!