Are you anxious about having children or stressed out by your children? You're not alone. An article in Philadelphia Magazine recently highlighted this issue and quoted me: “Anxiety about having children is a real concern,” David Fask, a clinical psychologist and therapist in Bryn Mawr, said when we talked on the phone for this story. “There are many valid reasons to be anxious. Children are enormously time-consuming and financially burdensome, and they radically change one