[WA]

Are you serious? Maybe you missed the entire privacy conversation around cloud storage in the last couple of years. Also, with your reasoning, your entire laptop should merely be a client for a remote storage.

Saving stuff locally is good for privacy, for performance, for offline-capabilities. You can back up your entire phone LOCALLY, to have a solution of your stated problems (theft, physical damage).

[kmlx]

i am very serious. people lose their devices all the time.

never save important data on a single device. you simply delay the inevitable "i lost my data" scenario.

non-important data on the other hand should have no problems living on a single device. or even localstorage.

and as i said before, i don't think your average user has any ideas about backing up. that's why it almost always comes back to the developers to implement it.