How do iPhone 11 use the Guided Access feature?

In the iPhone accessibility feature, there is a feature called Guided Access that limits a user's device to a single app and lets users control which features are available. For example, you can turn on Guided Access if you don't want to be disturbed, or avoid gestures to open other items.
Small partners using the iPhone 11 Series may have questions about why they can't turn on Boot Access with three power keys in a row and lock the screen with a single click? Let's take a look at how this feature works:
1. Go to Settings - Accessibility, and then turn on Guided Access.
2. Tap Password Settings then set guided access passwords.
3. Enter your password, and then you do, please remember your password. From here, you can also open The Face ID or Touch ID as a way to end a guided access session.
4. Turn on the Accessibility Shortcut switch so that the Accessibility Shortcut setting can be displayed when Guided Access is enabled.
Then, when you need to use this feature, open the app you need to use, quickly press the power button three times, and the "boot access" option appears.
Exit Guided Access:
In iPhone X and the updated model: Press the power key button three times in a row, enter your guided access password, and tap End. Or, if you turn edit face ID on guided access, press the side button twice in a row.