If your child already has their own Google Account, you can add supervision and manage their parental controls with Family Link.
If your child under 13 (or the applicable age in your country) doesn’t have a Google Account yet, you can create one for them and manage it with Family Link.
If you add parental supervision to your child’s existing Google Account and your child is above the applicable age in your country, you or your child can stop supervision at any time. If your child stops supervision, you’ll be notified and your child’s supervised devices will be locked temporarily.
Note: Stopping supervision may work differently for children under 18 who live in Japan and are using a Pixel phone.