Yeah, back then Apples iCloud might have been the best suggestion.
If you are trying to extrapolate from the past - which is a good thing in general - do not go back ONLY 14 years from now, but try a bigger time span, too.
I was born in Germany. When I extrapolate from the past on ANYTHING, I at least always start in the year 1933.
No, not a good idea if you expect that within your lifespan some entity might be able to be forced to tell a regime where you are hiding right now.
Taking control of your own data is shitloads of work, I and understand people do not have time it, and have other priorities.
I am just making my point here on how to better extrapolate and project from the past towards the future.
That's not a physical law, but just the result of the current technological landscape.
I can't say the same for the smaller services.
I don't have any grandmothers still alive but would certainly suggest iCloud for all family members.
(But, FWIW, I copy down everything from iCloud annually and store on a portable 1TB drive to have my own cloud-backup.)