Getting old has nothing to do with it. Most rock concerts have always sounded dreadful compared to the recordings. Movie theaters have been setting volume levels for the hearing impaired since at least the early 90s. The last program I went to was so loud it made the kid behind me cry. Small jazz clubs that need no amplification for even a trio will amplify a big band. Symphony goers have been talking, rustling programs, coughing and fidgeting for centuries. Is it getting worse? No doubt, the world is getting noisier and volumes are getting turned up in response.
If I want to *listen* to music, I stay home. It's at the correct volume, there are no talking morons, no coughing, no clinking glasses, no horrible acoustics. I can relax, in comfort, and be transported to another world.