But you actually don't need either of those. You just need the cheapest Android cellphone or tablet you get, and access to someone's wifi, which is freely available at many coffee shops, or from neighbors.
I still agree you shouldn't need it, especially if you already have a computer. But it's only "expensive" if you choose the higher tiers.
So no security updates and any app can stop working any moment. And all your data are at Google, too: https://news.ycombinator.com/item?id=26639261
The cheapest device you can get will be unusably slow - good luck doing anything out and about without inconveniencing everyone else while you wait for your device to load and pray the app opens in a timely fashion. Oh, that is, if your outdated device can even download and run it.
Access to wifi isn't really as ubiquitous as you make it seem either - what if the business you're needing to use the app for doesn't have wifi? Run down the street to the coffee shop?
https://smarty.co.uk/social-tariff
A cheap but perfectly useable phone costs less than £100 new from a brand like Xiaomi, Motorola or TCL; on any high street, you'll find a shop selling second-hand phones for as little as £30. I cannot think of any object in human history that provides so much utility for so little money.
edit: You can even get a free phone from your community. Possibly a better one than the a53. Most people have a phone or several in a drawer.
https://swappa.com/listings/samsung-galaxy-a53-5g?carrier=un...
A good point, but also a parking spot like that which is also not in range of city wifi is pretty rare, I'd reckon.
Almost all mobile apps today are Android/iOS only and require an App Store/Play Store account.
Can't say about monthly plans, as that depends on the country.
Privacy is a different matter and always dependent on the technical literacy as opposed to hard costs.
Is the requirement of wearing clothes in public a tax? Maybe.
But today definitely someone can still live without owning a phone, if they have access to a computer nearby (e.g. A library or friend).