Scary

Not only do kids these days not know how to use the command line, but they can't conceive of a time before Windows.

Student: "There were computers with only DOS?"
Me: "Yes."
Student: "Why would you buy a computer with only DOS?"
Me: "That's all there was. DOS existed for a long time before Windows."
Student: "People should get degrees for using DOS! It's so hard!"

I didn't tell him about the punch card days. A time of computers before keyboards and monitors... that would really blow his mind.