The UK is an incredibly competitive and well-regulated market. If you're in receipt of welfare benefits, you can get a tariff with unlimited 5G data for £12 ($15) per month. If you're a light user, you can get a tariff with a few gigabytes of data for as little as £5 ($6.50) per month.
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.
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.
This is actually something the US does pretty well, actually. The Lifeline Assistance Program (colloquially known as "Obama Phones") gives low income people (basically anyone who qualifies for food stamps) a phone, with calling and internet, at no cost to the individual.
I wouldn't bet on that being around much longer, because for some reason it makes a lot of conservatives absolutely seethe. Many of them convinced themselves poor people were being given the latest luxury model iphone out of taxpayer funds.
if only i was that simple. you will still need to swap it for a newer phone every once in a while when the OS stops being supported, and have to transfer the apps and auth to the new device which is not always straight forward
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.