I'm reasonably certain that all four of my housemates, (58 y/o +) don't have any idea how to close a program either on their laptops, or their phones. Thankfully I'm the only desktop guardian.

My government teacher in 12th grade got hit with an RIAA suit for seeding thousands of hours of music on Kazaa. When she found out that it was “illegal pirating” she deleted the icon off the desktop and thought she was done.

She never had to deal with a 4GB hard drive running out of space :-/