Configured correctly, parental controls can be remarkably effective.
: Content Barrier, because your older son won't scowl at you for treating him like a "baby" for setting the same restrictions as his little sister.
The Remote Management Test: It is possible to manage OS X's Parental Controls from another Mac computer and remotely make changes to the Parental Controls settings on your child's Mac, as long as they are on the same network.
The Internet content filter operates in three modes: unrestricted, automatic, and whitelist.
With this, you can prevent your child from accessing websites with adult content.
This is a good way to make sure your kids haven't stumbled across content they shouldn't be looking at or sharing personal information with strangers.