I'm not suggesting that apps do this or even if it is a good idea to have this level of security checks in code. Rather, the Android framework encourages decent

I'm not suggesting that apps do this or even if it is a good idea to have this level of security checks in code. Rather, the Android framework encourages decentralized pieces of code that revolve accessing various capabilities of the API. The kind of paradigms in Android could be considered to be already a bit helpful in that they promote certain kinds of application architecture that may be more easily adapted to doing such security checks. Ultimately it is a matter of time before something like this does make its way into the core features of Android. It is worth thinking about how Android is both deficient and helpful with its design philosophy regarding that eventuality.