> Just because Apple pushes iOS/macOS upgrades/updates to their devices and computer, doesn’t mean you are forced to install them.
Not entirely true. If you know a way to reject the latest iOS after factory reset, I'd like to know it. Otherwise, 'force' is the right word for it.
You can’t roll back, but if in doubt about any iOS upgrade/update, the procedure I outlined temporarily gets rid of these upgrades/updates for a time, so you are not tempted to install them OR, in the case of some users, accidentally install these.
Been doing these particular actions for the past two major iOS upgrades.
Also, Apple, more or less, pushes these upgrades/updates constantly over night ( after midnight ), when your iDevices are plugged into power charging and are still connected up to a WiFi network.
If I leave my iDevices plugged into power charging during the day still connected to a WiFi network, I never get any Apple iOS upgrades/updates ever during the day.
Simple solution.
So, what I do to make sure I do not receive these upgrades/updates overnight is if I need to charge my iDevices overnight, I simply turn off WiFi before I plug my iDevices in to be charged up.
That way my iDevices are not active online for Apple, or anyone else, to push ANYTHING to my iDevices that I do not want.
If iOS 12 doesn't shape up before the end of its cycle, I will be skipping this major version, as well.
It's not worth it to lose so much performance in these expensive devices to iOS upgrades/updates that start just whittling away at the performance of these expensive devices.
My three year old iPad Pro and iPod Touch will perpetually stay with iOS 10.