Users are able to toggle the privacy settings by visiting the career visibility setting. Here you can select the level of privacy you wish your account to have. Users can choose between public, private, friends or group only view.
There is also the option to switch off the voice and text chat by visiting the settings. Voice chat can be turned off in the ‘sound’ area and text chat can be disabled in the ‘social’ tab. This may be helpful in reducing the interaction your child has with strangers.