Always_Ask_Questions,
“I tried relying on them with kids and it did not really work”
I am not a fan of Google, but if you are already enmeshed in the Google ecosystem, their Family Link feature is really useful. For example, if you have a Chromebook for your child, you can:
1. Create a Google account for your child and enroll it in Family Link. You can then use the Family Link settings to completely lock down the Internet except for sites and apps that you explicitly allow.
2. On the Chromebook, sign on initially with your own account so it is the “admin” account that controls the device settings.
3. In Settings, go to “Manage other people”, turn off guest browsing (very important), and limit sign-ons to only accounts you specify (so they cannot create a new unmanaged Google account and sign in with it). Allow your child’s account to sign in, and any others you want (e.g., sibling accounts, their school accounts if they have).
4. Log in the child account, authorize the sign-in with your password, and s/he has a laptop that is locked down to your specifications.
With these steps taken, I have not discovered a way to “break” the setup (so long as your child does not know your password!), but once Google thinks they are over 13, they can unenroll their account from Family Link. If they do this, you will get an email and can take whatever action you need to.
There are some pitfalls to Family Link – the white/blacklisting only works at the domain level, so you cannot allow/block specific Web pages within a domain (e.g., you cannot allow http://www.theyeshivaworld.com but then block the CR). The Debian Linux container available on newer chromebooks (crostini) cannot be used with Family Link. And it ties you and your child to Google, which harvests all of the personal information you give it for dubious uses. As children get older, they will also start to push on the boundaries set by Family Link, so you’ll have to maintain an ongoing dialog with them.