clicking the browse button to select the file is a hell of a lot easier than opening the file manager, navigating your way through your files to find the one specific one, then make both windows small so you can select a file in one, and drag it over to the other.
And look, its also an example of how you turn nothing into a big, complicated, multistep imaginary issue.
Such a high level idiot would fail regardless of the OS.
You cant make an idiot proof system, because humanity just produces better idiots.