And to get a convenient "Wi-Fi Off" button (iOS, not Watch), you must now make a custom Shortcut on your Home Screen Thanks, Geniuses
Is the button in Control Center not enough?
Since iOS 11, BT/WiFi OFF buttons were neutered to what I call "F^@& Off". Requiring either a cumbersome journey into Settings, or using the Shortcut App to make BT/WiFi OFF buttons for your homescreen
This Quora user more helpfully explains: "Almost entirely to preserve a bunch of other features that depend on Bluetooth/Wi-Fi, including AirPlay, AirDrop, Apple Watch, Apple Pencil, and Handoff." https://www.quora.com/Why-does-Apple-not-actually-disable-Wi...
Thankfully, the Cell Data button is still On/OFF