These phones aren't just in the Developing World, though. This is a USA problem too.
I work with parolees and they get the free "Lifeline" phones the federal govt pays for. You can get one for free on any street corner in the poor 'hoods of the USA. They are the cheapest lowest spec Android phones with 15GB data/month. That data is burned up by day 3 due to huge Web payloads and then the user can't fill out forms he needs for jobs/welfare and can't navigate anywhere as he can't load Maps.
I’m curious how quickly the data would be used up if only using it for the intended forms/jobs/welfare. I wouldn’t be surprised if the data lasted barely any longuer due to bloat.
When I had one of these the data only lasted me 4 days. I didn't even purposely watch any videos, but I did read a lot of news articles and many "magazine" style sites have huge video payloads that load (and sometimes play) in the background if you're not running something like uBlock. I found some sites with 250MB home pages :(
I work with parolees and they get the free "Lifeline" phones the federal govt pays for. You can get one for free on any street corner in the poor 'hoods of the USA. They are the cheapest lowest spec Android phones with 15GB data/month. That data is burned up by day 3 due to huge Web payloads and then the user can't fill out forms he needs for jobs/welfare and can't navigate anywhere as he can't load Maps.