It would be better for the user if the app cooperated. For example, if you disable microphone access, it&#x27;s better if the app says you can&#x27;t make voice calls, rather than attempting them and failing strangely.<p>You could also end up in an arms race if fake data became widespread. Bad apps will try to detect the fake data and insist that you <i>actually</i> enable the relevant permission. It might not be easily detected but I&#x27;m sure it would be detectible somehow.<p>Much better would be to shut down apps that act badly when refused inessential permissions. Of course, that&#x27;s kind of hard, so faking it probably has a useful role to play.