Not only is writing nice—it's established that taking notes during class is a much better way to remember the material than simply reading, listening or highlighting. There is a process that happens in the brain when the person recreates the words themselves. You can't do that on a keyboard, as it's not the same, and it's way slower.
Likewise for my work—I have to take a lot of quick notes, and I would never have time to get down all of the information I need if I had to type it or print it.