Totally true that smartphones are useful. But people can decide they don't want one for many reasons, including not wanting to accept 20-pages-long T&C just to

Totally true that smartphones are useful. But people can decide they don't want one for many reasons, including not wanting to accept 20-pages-long T&C just to turn them on, and surrendering lots of personal data. If you're a lot into tech stuff, you might go around that by blocking most data collection, but most people don't have the competence for this, or have better things to do with their lives.