The good news is that they’re adding a new accessibility mode
https://www.apple.com/newsroom/2023/05/apple-previews-live-s...
In the HN thread , a lot of people were calling it the grandparent mode.
My parents are in their late sixties and travel internationally quite often and the lack of a physical SIM slot in new iPhones makes them not want to upgrade devices ever, because it would mean that they'd have to learn a whole new paradigm for installing and using eSIM when they're not very tech literate.
I'm getting older myself and every day this comic becomes more and more pertinent: https://www.penny-arcade.com/comic/2005/12/12/one-day-in-the...
And continually changing UIs definitely don’t help.