Music is taught, but the range and scope is limiting. A friend who teaches guitar is limited to classical music, so if a child is really interested in taking music to a higher level, he tells them that they have to be interested in that kind of music to progress in the school.
Sadly, my experience of music lessons in the 1980s is little different. My guitar lessons were all orientated towards classical music, as mere my violin lessons. It got off-putting after a while as the music I was hearing from guitars anywhere else in my life was rock, jazz or whatever was on the radio. That’s what I wanted to play.