Unfortunately it doesn't work that way -- users are foolish and will shoot themselves in the foot quite often, all while blaming you. If there were an option to, for example, disallow sharing of X on app Y, users would click it without understanding why. Then, months later, since X isn't shared, feature Z of app Y doesn't work. But the user doesn't understand how this works (messaging in the app might make it better, but not all apps are going to do it right and not all users will understand anyways). Since it's broken, the user will blame Facebook -- Facebook is broken!! Except the silly user did it to themselves.

This has happened. Since most things on the site are an app, Photos is an app. There used to be an option which ultimately disallowed an app to post certain kinds of stories to your stream (I don't recall the details). You could set this option on the Photos app, meaning you would never see any more photo stories in your stream. The option was very buried, so people had to specifically go to Photos and turn on the option... and silly users did this, forgot about it, and then complained that Facebook was broken since they never saw photos stories. Nevermind that it was their own fault. This option has since been removed in one of the Platform permissions revamps recently (IIRC it was simply forced to "off" for all apps, with Photos and similar internal ones special-cased to be forced "on".)