Maybe you could zip up like 1000 pictures and upload that to cloud storage.
And you are 100% sure that your cloud storage won't do
anything at all to that file? And you are 100% sure that unzipping will create the
exact same files as before? Bear in mind that even changing a singe bit anywhere renders your wallet lost and essentially impossible to recover. Too risky.
If one doesn't understand or comprehend "write this 12 words down and store them securely to restore your wallet in case you lose or damage your fondle slab." will (s)he understand why to remember 12 images and pray they don't get lost or altered? I guess not.
This is my argument every time someone comes up with some new back up method which is supposed to be more user friendly or easier to use. I would just arguing this in another thread in relation to Block's new multi-sig wallet they are releasing with (apparently) no seed phrases. How much more user friendly can you get than "Write this down and keep it safe". It is so simple and yet so secure.
But , there’s something still niggling at me - I can pretty much generate a wallet out of anything - I like the idea of taking a picture of The Mona Lisa and generating a wallet from it for example. That would be pretty damn cool .
Cool, sure, but far less secure than a properly generated wallet using a true source of entropy. Although if you do use this kind of system to generate a wallet (which I wouldn't recommend), then far better to turn your (insecure) entropy source in to a seed phrase and back that up instead.