My daughter has a friend who consistently illustrates just how hard it can be to hold a boundary.  Recently, she told me about a situation at school. There’s a clear rule: students do not ask adults their age. No exceptions.  One day, they had a guest speaker, and this friend of hers immediately asked, “How old are you?”  Her classmates quickly reminded her, “Hey, we’re not supposed to ask adults their age.”  And her friend’s response? “I know, I just want to know how old she