I've spent upwards of a quarter hour in support calls or installfests trying to get someone to open a terminal window and issue 2-3 commands.
I routinely get asked for assistance with such technical tasks as: deleting spam email, restoring sidebars and menus, resetting font sizes, locating a window that's been hidden behind another foreground window. This from otherwise nominally self-sufficient, educated, professional adults.
Though in cases there are sensory and motor impairments involved.
The users themselves consider themselves proficient. Dunning-Kruger strikes again.
I am always shocked at how many people respond to emails asking questions that are answered IN BOLD in the first paragraph of the email announcing a new tool or service.
The smartest people can sometimes miss the simplest of details.