Though, he doesn’t seem to know that literally all settings for a particular app can be seen in a single place too.

Also, the default behavior is to first ask the user, and with iOS 13 you get again several notifications from the OS that a particular app used your location multiple times over the last X days, with a scary map showing where the app requested the location too, and that’s yet another chance to change the setting with a single tap. Happened to me with Waze.

Bottom line, his complaints are baseless. And no offense, but if he cares so much about the privacy of his family, why is he not encouraging them to quit using FB?

Edit: moved to root, was initially a subcomment by accident.