This. Perhaps it’s time for Apple to freeze all last generation phones with the last version of iOS designed for each phone and call it a day. And if the owners complain about being stuck on iOS 9, too bad. And let the batteries die out, no firmware to help lengthen their lifespan. And if the owners complain about batteries dropping dead without warning, too bad. Trying their best to help these people with old phones isn’t working; so just cut them loose and be done with it.