Setting a Custom Password in YouTube Kids
YouTube Kids is a children's video application where parents can control what their children watch. Available for free for iPhone (iOS) and Android smartphones, it has a locking system that carries a random numeric sequence that must be typed on the screen. In this way, it is possible to access the area exclusively for parents. However, children who already have interaction with numbers can easily assimilate the procedure. To avoid this problem, parents can configure the app with a custom four-digit unlock password.
Check out the following tutorial on how to set up a custom unlock password in the YouTube Kids app.

Tutorial shows you how to login and create a user profile in the YouTube Kids app
Locking content on YouTube Kids
Step 1. Open the application and tap the lock icon in the lower-right corner of the screen.

Action to access YouTube Kids app settings
Step 2. Enter the numbers indicated to unlock access to the settings.

Action to add unlock and access YouTube Kids app settings
Step 3. At this point, touch Settings.

Action to access settings for parents of the YouTube Kids app
Step 4. Click the "Set custom password" option.

Area to set a blocking password in the YouTube Kids app
Step 5. Enter a four-digit custom password.

Option to set a custom password in the YouTube Kids app
Step 6. To confirm the setting, re-enter the password you have chosen.

Action to confirm a four-digit password set up in the YouTube Kids app
Step 7. On the home screen, touch the lock icon again.

Option to unlock the YouTube Kids app with a custom password
Step 8. The password you have set will be required to unlock the application options.

Confirmation for using the custom blocking password in the YouTube Kids app
Take the hint to have full control of YouTube Kids app settings.
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