I think it's reasonable for Apple to make it difficult for shady third-parties to get you to install their malware-ridden app store, but I don't agree that the only way to keep users safe is to disallow any third-party app installs entirely.
Apple just currently has little incentive to do the former, because a) it's more difficult, b) they have a financial benefit to keeping everyone in their own app store.
Given that, it's naive to think that Apple's main motivation here is to protect users. Sure, that's a part of it (maybe even a big part!), but they could protect their users in other ways, but those other ways would likely hurt their bottom line.
And I think that is why people cry anti-trust all the time when it comes to this: in a perfect world where no one was motivated by profit (and consumer lock-in), we can imagine that Apple would find a way to open up the platform a bit more.
Apple just currently has little incentive to do the former, because a) it's more difficult, b) they have a financial benefit to keeping everyone in their own app store.
Given that, it's naive to think that Apple's main motivation here is to protect users. Sure, that's a part of it (maybe even a big part!), but they could protect their users in other ways, but those other ways would likely hurt their bottom line.
And I think that is why people cry anti-trust all the time when it comes to this: in a perfect world where no one was motivated by profit (and consumer lock-in), we can imagine that Apple would find a way to open up the platform a bit more.