Step 2: Have the iPhone pop up saying "do you want <Apple watch> to be able to send messages?" and don't just assume "yes"
Both steps would improve security, even if they harm Apple's profits.
If they go to a different store, and buy a non-Apple product, that's insecure. What they need to do is return it and go to the Apple store and buy an Apple product. That's secure. Give the money to Apple.
Yes, I do trust the company that developed Secure Enclave more than I trust random BLE firmware in a $49 Alibaba watch.
More importantly -- my great-uncle can trust the same thing, because Apple has spent decades building that trust. Consumers generally should not trust random hardware. Apple is not random hardware.
Really, how is Apple protecting you from clicking Allow on a webbrowser if it asks permissions for WebCam and Microphone? I am asking since I do not have a Mac and really want to know how well are Apple users protected compared to Linxu users from web and microphone on browsers.
Currently we seem stuck in a positive feedback loop where tech becomes more and more paternalistic which creates more and more tech illiterate users which is used to justify even more tech paternalism.
It is convenient that this tech paternalism also happens to align with the profit incentive: Easy to trap people in closed ecosystems this way.
You can put a button in your app that says "Tapping this will drain your bank account and give you cancer" but if it also enables functionality that the user wants, they will tap it.
Most users are not able to root their device due to the number of steps needed and will give up on an app that needs root access. Make it so that you have to do something other than just clicking a warning message to enable using your Pebble then.
Warning messages can be made idiot proof with some thought.
Imo, if this were to happen, it should happen by allowing devices like the pebble watch to sign into an Apple account and acquire permissions through that process rather than nagging on my phone on pairing.