The issue is that novice, elderly, power or otherwise, if you have dialogues popping up all the time asking you if you're sure, and 99% of the time you ARE sure, then pretty soon you will habituate to just hitting OK whatever until the one time you DON'T mean OK, at which point you have an undo.
This isn't controversial, or just my opinion, it's observed, researched HCI stuff (mainly in the context of aircraft cockpit design but also on desktop software and the web).
https://en.wikipedia.org/wiki/Mode_(computer_interface)#Asse...
The issue is that novice, elderly, power or otherwise, if you have dialogues popping up all the time asking you if you're sure, and 99% of the time you ARE sure, then pretty soon you will habituate to just hitting OK whatever until the one time you DON'T mean OK, at which point you have an undo.
This isn't controversial, or just my opinion, it's observed, researched HCI stuff (mainly in the context of aircraft cockpit design but also on desktop software and the web).