Real people don't know how to use Windows.
They just want to know where to wave the mouse, when to click and which mouse button to click.
The other 1% (ie us) know how to work our computers regardless of which OS it runs.
To tell if your workforce is ready for Windows 8, try this. Move the taskbar to the right-hand side and see how long it takes for them to figure it out.
If its more than 10secs. They're not ready.
If it takes you more than 5secs to figure out how to do this. You're just playing at IT.