How do I disable Face ID?

Due to its edge-to-edge display the iPhone X ships without a physical Home button and no Touch ID. To unlock your phone Apple has created Face ID. The new facial recognition technology projects and analyzes more than 30,000 invisible dots to create a detailed map of your face. This allows you to unlock your phone just by looking at it. The technology is so advanced that it works with make-up, hairstyle changes, hats, glasses and most sunglasses, but what if you don’t want to use Face ID?