Hard disagree on your point regarding music theory. Learn as much music theory as possible because that’s the path to understanding what you’re playing and why musical sounds gravitate towards and away from each other the way they do.

If you’ve viewed theory as this abstract, academic set of “rules” designed to force you to play and write only in a certain way, this is just straight up wrong. It is not that and was never intended to be. If you wrote or played something that skirts your current understanding of music theory, and it’s still sounds good, great! Carry on. You may eventually come across a theoretical explanation for it, and if you never do, that’s okay too. It’s probably still out there somewhere.

I spent several decades as a professional musician. I can’t begin to count the number of dunderheads I’ve encountered who’d say, “I don’t want to learn theory. I think it’ll limit me.” Those people are morons. There’s no such thing as knowledge that makes you less knowledgeable. If you’re one of those people, I implore you to stop being one of those people. I’m much more impressed by intellectually honest people who’ll say, “I don’t want to learn theory because I can’t get my head around it, but I still love playing.” Then carry on, brother!

All that being said, music is, at its core, a uniquely human way of expressing the human condition. And we are all allowed to use it in any way we like for whatever reasons we choose, selfish or otherwise. We’re allowed to excel at it. We’re allowed to suck at it. We’re allowed to love that music that everyone else hates. Every musical sound is meaningful. And if a music teacher is failing to make that the core of their instruction, then that music teacher is failing, period.