We practically can't expect people to do without a smartphone. It's how people pay bills, bank, access weather information, etc. And since it's the most-used path, it's also the best-maintained path. Non-smartphone alternatives have already rotted. Have you tried calling into half of those bills you pay via QR code instead of just scanning the code? Try it sometime.
Instead of telling people to just go live on a mountain monastery in Tibet, we could instead simply eat our cake AND have it by just regulating this stuff. Pass privacy laws. Fine people who break them. Samsung, Google, etc will comply rather than not continue to bathe in our ad revenue.