Mice and Hand-Eye Coordination
"And there's a lot less hand-eye coordination involved in using a keyboard compared to using a mouse or touch. Better for the eyes, better for the hands."
For Windows users, the premium placed on hand-eye coordination skyrocketed in August of 1995. Before Windows 95, we did not have to worry about or pay attention to the path the mouse took from point A to point B; we just thought about where we were moving it to. After Windows 95, and to the present day, we have to be very careful how we move the mouse for fear of causing an unwanted submenu to pop up and cover the menu selection we were trying to get to. Sheer idiocy!
A distinct but related point: Under Windows 3.1 and earlier (and OS/2, and the Amiga), if one changed one's mind about a particular submenu one had opened, or it turned out not to be the one one was looking for, one merely had to click on the same submenu a second time to get it out of way. One did not have to click on some other submenu to make the first one go away, as one must do today.*
By changing the Windows event model and menuing system so that the mouse's mere presence at a position suddenly had the same effect as a mouse click, Microsoft fundamentally changed the way most of us use the mouse, and it was a change very much for the worse. It was a new behavior that could and should have been left optional.
* Jacking up the value of "MenuShowDelay" sometimes solves the first problem, but not the second. And the problem's creation in the first place was totally unnecessary.