It's a useless thing to want. Most users can be safely assumed to operate on the same intelligence level as a chipmunk the moment they are handed a keyboard. I

It's a useless thing to want. Most users can be safely assumed to operate on the same intelligence level as a chipmunk the moment they are handed a keyboard. I've met people who had difficulty handling the instruction "open excel" because excel wasn't in the familiar spot on the desktop and confused "save and exit word" with "hold power button for 5 seconds" without a malicious thought. People still install sketchy Apps and "Make your computer clean", they respond to emails from the nigerian prince about his money and pills to make body parts larger and they will continue to remain ignorant of the dangers lurking in the internet. Instead of educating them we should protect them. Users will do dumb things and we need to make sure that when a user wants to do a dumb thing they know it's a dumb thing. Sysadmins may install a rootkit on purpose or may install a self-signed driver. The average user should under no circumstance be given the power to install a self-signed anything. Give the sysadmins power and prevent the user from abusing it.