Earlier quoted context omitted.
As soon as you open the door to side-loading, you'll have scammers and data-siphoners force all their users to side-load so that they can completely bypass Apple's privacy controls and security features. The entire iOS ecosystem is built on the App Store review process as a gatekeeper for entitlements and the capabilities they grant (through API access). How do you solve that problem for side-loaded apps?
Sideloading, AKA "installing software on your device", is something PCs have been handling just fine for decades. It's fine to warn the user when they're going off the beaten trail, but do not lock them in a cage to prevent them from doing so. If they ignore the warnings and get scammed because they are unable to identify reputable software from disreputable software, they learn a life lesson. Life goes on. There sho…
Having a single way to pay, subscribe, cancel, browse apps, beta test versions, and update apps, proved to be a huge game changer for making software accessible while also minting millionaires around the world in terms of small development teams.