"Guitars really rose to prominence in the mid 20th century." I think that's very true and I reckon that's because the guitar is easily/quickly learned—that is

"Guitars really rose to prominence in the mid 20th century." I think that's very true and I reckon that's because the guitar is easily/quickly learned—that is to learn and play badly. If your learning curve was much steeper with the guitar than the piano then your expectations must have been to play it properly (and that could be because of your piano experience). I learned the piano for while and later gave up on the guitar because I found it too difficult to play every note on it as one does on a piano. Strumming a guitar and playing chords suits many and that's fine but I wanted to do what the likes of Segovia and John Williams do and that was pretty much beyond me. So I sympathize with your steep learning curve.