Tangential, and very anecdotal, but I've been seeing more books on the BART. While almost everyone is hunched over their phones of course, it feels like there's a growing number reading a paperback. (Oddly? it's been a while since I saw a kindle.)
One of the things that I loved about Paris when I was there a couple of years ago was that everyone on the subway had books out (whether Kindles or paper) -- very few phones in sight.
Bay Area Rapid Transit?
That's right. In today's carriage to San Francisco my very unscientific observation it's: three reading books, thirty on their phones, ten resting with their thoughts.