"I like not having choice, so long Apple is the only choice. And I want others not having choice too, as log as Apple is their only choice, whether they like it or not."

They should at least allow optional sideloading on device versions they no longer support, e.g., "obsolete" iPhones and iPads. There should be an "official" way to "root" these devices that otherwise in effect can no longer use the AppStore (because most AppStore apps only work with the most recent iOS versions). Another idea would be to have an AppStore "archive" so older devices can still use an official AppStore.

Apple's "AppStore" is in effect a way to force obsolecence and mandate device upgrades.