The premise isn't exactly bulletproof. My modern internet-connected phone exists mostly for web, email, SMS/iMessage, books, music, and tethering to my laptop.

The premise isn't exactly bulletproof. My modern internet-connected phone exists mostly for web, email, SMS/iMessage, books, music, and tethering to my laptop. I don't use many other apps much, the ones I do use are mostly just optimized substitutes for a web interface (e.g. my banks' apps). There are a lot of people that play games or use other substantive apps on their phones, but I'd say there's also a lot like me that really don't spend much time in third-party apps to begin with.