Guitars (or any musical instrument) are essentially REPLs and therefore do provide instant feedback and often gratification. Learning to do anything well takes

Guitars (or any musical instrument) are essentially REPLs and therefore do provide instant feedback and often gratification. Learning to do anything well takes a lot of time, so that statement is true == true. Learning to have fun with something often happens (and in the case of a guitar) quickly. Lowering the barrier to accessing guitars, mixers, computers and software to get a recording up is the real challenge, because that takes cash.