It was possible before, I had used it until last year!
But earlier this year I checked in with some 240 JPY left and found out that I couldn't charge it during the trip... Luckily it was enough for the 2 stations in the Osaka Metro to save me an awkward moment.
I have a similar background. Used Androids from 2010-2018 and switched to iOS.
Some arguments were: Android's capabilities became less over time. I had cool apps until 4.4 Kitkat which automated toggling on/off WLAN/GPS/mobile network among others, but these APIs were restricted more and more over time so the benefits became less.
Another fact was that I calculated that iPhones were cheaper than all Android I owned when taking resale value into the calculation. That Apple gives OS updates for 5+ years helped a lot here, I had experienced <1 year on flagship models before. (buying 2 year old iPhone and selling it at 4 year old was cheapest/year)
But one of the biggest reasons was that I never trusted Google much. For example I never used the feature to use WiFi networks to get coarse location. Which meant worse UX (had to click NO on a dialogue each time I activated GPS) but also a "feature" the iPhone had (better location).
This is obviously a very personal point of view and it might be very different today, as I used Android in its earlier years.
If your mobile only bank account is the only thing stopping you from ditching your iPhone, I would suggest switching your bank account.
Yes, a retail bank might have higher fees. But if spending 10 bucks a month can get you rid of your addiction that's a great deal.
They will definitely help you with the transition to gain a new customer.
Geizhals is amazing!
I started using it for price comparison almost 15 years ago, but nowadays I use it mainly as a database to filter for products which fit my needs and are available.
My parents pay a similar amount for 70% of a 16/1 MBit connection. But that is not quite rural, it's one of the richest towns in the country and part of a big agglomeration.
It's not quite 100%, the merchant has costs associated with using cash: The time a cashier has to spend counting the cash register's content, time spent on bank runs to put away earnings/get extra coins for change, some fees associated with it, some amount that gets "lost"...
I remember the cost was less than credit cards take, but not much lower than Girocard payments.
But earlier this year I checked in with some 240 JPY left and found out that I couldn't charge it during the trip... Luckily it was enough for the 2 stations in the Osaka Metro to save me an awkward moment.