It's a terrible analogy no matter how you interpret it. Approval of cars is based on whether those cars can harm other cars. If I want to "drive" (use) an una

It's a terrible analogy no matter how you interpret it. Approval of cars is based on whether those cars can harm other cars. If I want to "drive" (use) an unapproved "car" (app store) on a "public road" (my own device), I should be able to do that.