I wish there was audiophile equipment for older people that took that into account. Headphones and speakers, say, that only go to 14 KHz instead of 20 KHz. By not needing to design for as wide a frequency range, they should be able to either make them less expensive, or more accurate, or both.
https://medlineplus.gov/genetics/condition/age-related-heari...
https://playback.fm/hearing-test
and
"gradual loss of sensitivity to higher frequencies with age is considered normal" (https://en.wikipedia.org/wiki/Hearing_range)