Today, we’re talking about such a pressing consideration for anyone raising a kid these days — what it means for today’s generation of kids to grow up with very public lives and coming of age in a digital world where so many aspects of their lives are online and available for public consumption, not to mention that much of their important work of identity formation is being shaped by the media and technology they interact with.

My guest, Devorah Heitner, gets into all of this in her brand new an...