Not because there is tremendous shortage of people who can produce things but because once you know how to make something, it changes how you see things.
Once you know how to assemble an electronic device, every computer seems a bit less mysterious. Once you know how to give a speech, you see things in the speeches others give.
Learning how to make things turns you from a spectator into a participant, from someone at the mercy of the system to someone who is helping to run the system.
Learning how to make give you the guts to make more, to fail more often, to get better at making.