I agree. I have taught myself to play many instruments in my life. I can't play any of them well, but that wasn't the point. The point was to learn how to play a new musical instrument. Sure, I can't pick up a saxophone right now and sound like John Coltrane, but I know all the essentials of how to play a saxophone, and if I spent a couple of weeks at it, I could probably do some basic, but listenable, jazz on it. With a guitar, I can't pick it up and play like Jimi Hendrix, but I can play chords and sing along with them. I've learned a lot of other instruments at a very amateur level because the joy wasn't in learning to play them well, it was in learning to play them.