In those schools, you don’t just read about theory. Every theory class has a lab session attached to it. A 1 hour class and a 3 hour lab or a 2 and 2. You just don’t use a computer for the things you “create”.
For instance, color theory class required using hand drawn or construction techniques to demonstrate your understanding of the lesson du jour, as dumb as that might sound today in the iWhatever world. For instance, one of our classes, each group was given a different soda can, a cheap clip on light, a warm lamp and a cool lamp. Then you had to draw by hand, in gouache over pencil sketch, using warm and cool color spectra, to illustrate what the effects were on the colors of the can. Not only did you learn color, you learned how to see. And you learned to do it relatively quickly as a sketched “mock up.”
2D class was much the same. For one lab you were provided with a magazine and told to clip apart images into a new arrangement that illustrated the demographic focus of the magazine. As much as that sounds like a kindergarten amusement, the purpose was to get you to re-visualize the images in a different format, sometimes a different shape, sometimes a different meaning altogether.
3D class taught you how design relates to space. Not just one or two sides of a sheet of paper. The constructs you created were in real space and represented items like POP displays or exhibit structures. You learned how to make your own box templates by actually making the box, unfolding it, flattening it, adding glue tabs and then adding hand sketched graphics that would align properly when refolded, without having to rely on pre-existing box designs or ready-made templates. Again, there’s that quick “mock up” thing.
In each of the above classes, and most others, after every lesson, there was a critique where you had to present your solution to the project, and you had to defend your design decisions on why you did something the way you did.
Graphic design isn’t all about the computer. Beyond the internet, graphic design has to interact with the real world. Designers themselves have to interact with their business clients. All your computer skills mean squat if it doesn’t translate off the screen. Today’s student isn’t learning that in a lot of schools.