It's funny (and, by funny, I mean sad) how many people that don't read disparage reading. How can you be proud of being illiterate? The same goes for education. I have a degree in music composition. It's astounding how many people call themselves musicians that don't know anything about music... even though they play it.
Admittedly, my reading isn't as fluid as it certainly could be (no real need to read here). But where I live, nobody can read and nobody is educated. So, if you can read, they absolutely hate you and truly wish you were dead (yes... I've been told to go kill myself). So, I read in my room and don't play with anybody else.
I think this speaks to a much bigger problem with music... as an institution and as a product. Music is truly and measurably getting worse. I honestly believe that's because there are fewer and fewer musicians (people that actually understand music, not just people that bought an instrument) making music every day. That's why being a "musician" has such a stigma in polite society. Most people just believe you're going to buy a cheap instrument; learn a few notes, chords, or songs; and go out into the world proclaiming you're a musician. Honestly, it's just a bunch of participation trophy BS. It's like saying you can speak a foreign language and, when somebody says something, you can repeat it... but you still don't know what it means... you just like the way it sounds.
If you're going to call yourself a musician, you should probably know something about music. You don't have to be able to sight-read on the spot, but you should be able to at least get the general gist of a song. If you don't, it's never too late to learn. AND, you should never look down on somebody that has educated themselves. It took a lot of time, effort, and probably money.