I used to think the same thing. I was a graphic artist/designer, doing it all the "old fashioned" way... airbrush, Letraset, illustration board, Parafilm... the whole shebang.
Then along came Photoshop and Illustrator and Quark Express, and sudden;y my world changed forever. It was either learn how to do it all on the computer now, or find another line of work. So I was literally forced to learn it. It was a pretty tough transition, as I had never had any sort of computer training at all. Learning how to do what you do for a living in a whole new and different way, while you're still trying to make a living doing it as you learn, was a pretty nerve-wracking experience.