Using your analogy: to some (and I include myself), telling them "just start a business", is like telling your grandmother to post a question on stackoverflow when she can't figure out which little picture to click to open the word processor.
You have to understand that some things that from your point of view are easy, are hard for other people. Starting a business is NOT "brushing your teeth." There's basic "taking care of yourself," and then there's how to create a self-sufficient semi-profitable business to work on projects you enjoy. I don't see how you can make this false equivalence.