> If there were a better way to learn guitar, everyone would jump on it.

This type of assertion is made in a lot of contexts, but I don't believe it holds true. I believe that there are a subset of people who are willing to learn a new skill. Of those people, there are very few who are willing to learn a new skill but won't because of some perceived barrier to learning it. The vast majority of that subset will learn the new skill despite the perceived barrier.

Of the people who aren't in the set of people who are willing to learn a new skill, there will be very few people who will be movitated to learn the new skill because the perceived barrier to learning it has changed in some way.