Cool! I'm on 12.4.1 and for a while now enjoying my simple accessibility shortcut > color filters to enable triple-click side button to toggle greyscale vs normal color mode. Less battery usage, helps keep the device less unnecessarily stimulating, doesn't interfere w/ sleep, and sometimes good for random conversation ("how'd you do that?"). :)
I'm sure you were just trying to be funny, so I forgive your snark. But your analogy is inept. I'll try riffing on it to explain why:
By default, our "smartphones" are attention-capturing entertainment devices. Disabling notifications is one step towards regaining control and putting apps in their place -- which is to say, tools I will leverage with intention, on my schedule. Disabling colors is another step in that same direction. It's not removing chalk from the classroom, it's temporarily closing the window to mute the ice-cream truck during exams. The whole point of the triple-tap shortcut is to make it trivial to toggle modes, so I am the only one who gets to decide whether I'm in the library or the arcade.