Comment by plst

You are forced to trust Google or Apple if you want a smartphone. They own the whole market, it's a duopoly. You already have no power to install an OS without such limitations on most smartphones.

Limitations because it's not just protection - you don't get to choose which authorities you trust. Defaulting to manufacturer/OS vendor as the default authority would be ok, but there is no option to choose. Users have no power over their own device. That's not ok even if most choose to never execute it or don't know about it, it will lead to abuse of power.