How do i turn on and of the collider component of various gameobjects at once

so in a my game i want that when my character picks up a coin he can walk through some walls.
i have tried using some codes but they dont work pls how can i achieve this?
here is my current code


FindGameObjectsWithTag() returns an array of Game Objects, so if you want to change all of their colliders, you would need to do something like this:

GameObject[] gameObjects = GameObject.FindGameObjectsWithTag("wall");

foreach (GameObject go in gameObjects) {
	go.collider.isTrigger = true;