For people saying “but there are amazing musicians who don’t read music,” yes, of course there are. Literacy isn’t required for poets, either. There are rich oral traditions that weren’t written down for hundreds or thousands of years. But you cannot convince me that reading and writing are unimportant for poets and audiobook readers. You can do both jobs without reading or writing, but they’re a heck of a lot easier if you do.

I think it also depends what instrument you play. It’s understandable that there are guitarists in this thread saying “eh, pianists don’t need sheet music, I do fine without it” but they are missing the fact that sheet music is way more useful for piano than it is for guitar. If someone truly does not want to learn to read music, they might consider taking up an instrument like guitar where you can get along without it.