A SECURITY SUGGESTION . . .

I live in the N.E. area of Dallas. In the past week or so, in our area, there have been several muggings (one female was also beaten up) to steal iPhones. Any half intelligent mugger will know to immediately turn off the phone to diasable the Find My Phone app. How difficult would it be for Apple add an update that will not let you shut down your phone without using your password? I would hope that Apple follows the forum and will give my suggestion consideration.