When I was 14 my first teacher, school instrumental lessons, was a classical guitarist, he started me off on Bach Cello etudes. I wanted to learn Guns n Roses.
My second teacher, private lessons, made me do jazz. Complicated big chords and funny times signatures, but I wanted to do Guns and Roses.
Neither of em let me do Guns n Roses and I'm so glad for that......I wasn't at the time.