Insist they never reveal any family or personal information without parental approval. Privacy is difficult to protect. Technology has made information cheaper and easier to disseminate and manipulate. So be selective and be careful. Words are powerful.
Words are important.
It's up to you to use words for good, not harm. Rumors, faultfinding, vulgar language, insensitive remarks - they all hurt the speaker, the listener and others as well. Emphasize the positive and you make a difference for the better - in ways you may never know. I say it just Begins to live that day. If I speak in the tongues of mortals and of angels, but do not have love, I am a noisy gong or a clanging cymbal.