Here's what I would do. i would order people who blast loud music to listen to a week's worth of music and speech which simulates the sounds heard by someone who's lost a lot of hearing.

After those hours of straining to hear swwet nothings (which they can't understand) little kids (that they can't hear) and music with no high notes (so boring), they might get the point.

I remember how sad it was when my great-nephew was playing with a toy car one day and making up stories, and my father said, "Is he talking?"