This is 'me' after a decade....
Most of my work is via desktop vs iPhone.
There's aways a way to 'recover' a problem, like retrieve from trash or history.
But there are times when I'm writing code (I'm an iOS Developer), etc. and I may have deleted a line or whatever; or even remove a legal PDF (***** happens).
There are times that I'm not aware of such an incident till sometime in the future; then it's 'recovery time'.
Having a READ ONLY option prevents '*****' from happening in the first place.
BTW: Evernote forbids me to write '*****' in my response. I wonder if I can write '*****' in my own, personal documents. 🤔
P.S. I must admit, Evernote is getting better.