Biggest headache that Apple has solved is updates. They are very clear if a phone is still supported or not.
The following is a conversation I had with a relative, while trying to troubleshoot their phone.
Q: "Why doesn't my Bank App work?"
Me: [after many steps]"Because you need to update your OS"
Q: "How do I do that?"
Me: [many steps later] "Sorry you can't update your OS. You will need a new phone."
Q: "But this phone is only a year old."
Me: "The phone had been out for over a year before you got it. The [manufacturer] stopped updating it. You have to get a new phone to use your Banking app."
Q: "But new phones are so expensive, my phone is still plenty fast, and the battery lasts all day, why do I need to get a new phone?"
Me: "The manufacturer stops making updates to make you buy a new phone from them."
