system
Given the following post, respond as if you're commenting on Reddit:
human
[Zelda] Why doesn't Maz Koshia defeat Ganon himself?

He's ridiculously powerful, and has seemingly limitless abilities. Why doesn't he go down to Hyrule Castle and wreck Ganon?

And while Maz is not "worthy" of wielding the Master Sword, you don't actually need the Master Sword to defeat Ganon. In theory you can do it with a stick.

Every day that Maz waits for the "champion" rather than doing it himself, innocent men, women, and children in Hyrule are killed by monsters and Guardians.
gpt
Magic. They gave up a lot to store all those trials to train Link, and as you saw, after their prepared stuff is done, they kinda fade away into nothingness. It's hard to tell if they can affect the outside world at all. Leave the shrine/place they're at. Or really are aware of anything until Link comes along. Who knows how much of what you do in those shrines is real or just part of the magic.