Because programming is different from painting or music. Programming is a skill that's through understanding of systems and how they work. Sure you can build so

Because programming is different from painting or music. Programming is a skill that's through understanding of systems and how they work. Sure you can build something small with basics skills, but beyond that you need understanding. It takes knowledge and understanding on why your code is performing slow, knowing how memory works, knowing how activation records get built. Yes you can build basic stuff with these basic skills but to be a truly wonderful and competent programmer you need to understand the system and your responsibilities.