Unless a parent is mercilessly beating their child, absolutely not! It's none of my business. We all make parenting mistakes. If I stepped in, the parent could become defensive and the child could suffer even more. I think that more of a focus could be placed on correcting our own less-than-desirable behaviors than on trying to point out and fix other people's.
What do you want the panelists to weigh in on? Email your ideas to editor Tamara O'Shaughnessy at email@example.com.