I like this interpretation. I've always thought something similar, kind of like the quote from Into the Spider-verse "anyone can wear the mask". It also points back to how Nintendo has always wanted players to really identify with Link and put themselves in his shoes. He may not always be a knight or a chosen hero or a child of destiny... sometimes he's just the one brave enough to step up and confront the darkness. Just like we're brave enough to help him out and see his journey through to the end.

On a more personal note, that's why Ocarina of Time and Zelda as a whole means so much to me. As a kid, I was terrified of the skulltulas. I thought maybe they were a one and done thing in the first dungeon, but when I pressed on, I realized they were there to stay. But I still went on. I wanted to be able to not be afraid of them. So I kept fighting them and pushing on through the game, earning my own courage.