There is a simple, inexpensive solution for this. Don't go to theaters.
I have the other issue of high frequency hearing loss from military service. The loud sound just amplifies the bass tones and drowns out my effort to hear the treble.
I need CC to follow a movie.
I will never forget that moment, at Lane Army Heliport RVN, 12 hours ahead of DC time, listening on Armed Forces radio, the transmitted sound of Neil Armstrong's voice as he descended down those stairs on the lunar lander.
It was not a global event, It was a truly American event, inspired by JFK and fulfilled by devoted Americans using slide rules, rudimentary computers and seat of their pants ability.