They don’t. I used to work the Genius Bar and sadly the majority of users don’t know how to sign on to iCloud haha.
Apple has a habit of hiding away features. There are some outstanding accessibility features on iPhone.
I personally use the Backtap to run a shortcut that turns off WiFi, not greys it out but off off. I get irrationally mad when it always try’s to connnect to networks and kills my internet.