The reasoning can be seen on the linked page https://developer.android.com/preview/privacy/scoped-storage https://developer.android.com/preview/privacy/scoped-s

The reasoning can be seen on the linked page https://developer.android.com/preview/privacy/scoped-storage https://developer.android.com/preview/privacy/scoped-storage Fewer permissions needed for app private data, automatic clean-up of the files for an app, implied better security of said files because they're in a sandbox, controlled access to certain file data (location info in photos is only visible to the app that is the device default for photos), etc, etc.