> Nowadays, you can no longer exist in society without a phone.

Is it the phone or just the mobile operating system? I do most of my phone stuff on a tablet that I keep at home - where it's safer. I am currently using an Android phone (without an account) for GPS, phone calls (contacts), internet, games, email (alternatives to google), etc...

But for those critical and sensitive apps (banking, etc)... I consider those to be too dangerous to be walking around with.

So any phone will serve (I can wait to get home to check email for example).

That doesn't solve for services that by definition need to be accessed on the go, e.g. public transit, parcel pickup, luggage lockers, rental bikes, restaurant menus, paying for parking, etc. (some of these may not mandate phones in your area yet or may allow mobile web alternatives, these are just examples where I've seen strong pushes towards apps or at leas in many places).