My grandfather could never figure out how to use the mouse. Even after we did a hand-holding training, he just wasn't able to figure out how to do anything. H

My grandfather could never figure out how to use the mouse. Even after we did a hand-holding training, he just wasn't able to figure out how to do anything. He gets the iPad though -- it's just touch here, then touch there. There are no confusing menus and overlapping windows. He never "got" the concept of the windowing environment, windows hidden behind other windows were always really confusing for him.