Staudey
hypothetical example: grandson is visiting, sees my laptop on the coffee table, asks to use it to check his class schedule.
no problem.
he sees "some folder" in the file manager, clicks on it
Without a password: oops, that's all Greek to me, and leaves after he inadvertently modified or deleted something.
With Password: nope, can't go there, moves on.
could have been another operating system, my banking records, **** collection, whatever.
same applies in an office setting...
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so, if the Current operating system and or files are damaged or deleted, no problem.
worst case, reinstall and recover all data... one hour lost.
everything of unique value is archived on separate partitions on a different physical drive... the ones that Should require password to access