Film can't compare for vitality or depth or honesty to music. I would say that about literature as well. I would say that of most other active forms of popular culture in Western society. They can't reach the passions or effect the changes that rock 'n' roll has inspired. Bob Dylan is in his late 50s and can no longer turn the world upside down like he did 30 years ago, but is still an artist of immense talent and creativity in the same way Muddy Waters, Howlin' Wolf and Charles Mingus in their later years were still powerful.
Some artists get better as they get older.
Despite what Pete Townshend said, I don't think anybody said it was something you couldn't grow old with and still have a passion for. The day I started to grow up was the day I fell in love with music. I made that connection to an active art form that could say things about the world. It helped shape some of my views and gave voice to some of my experiences. It was not surprising to me in the aftermath of my brother's death that I spent a lot of time listening to punk music because it seemed to speak for a rage and a willingness or desire to spit in the face of all the things in life that seem crazy and unjust and that I was furious about.