Q. A Boyish Girl: Our 5-year-old daughter likes to dress up as a boy. We're not concerned about it, because she grew up with two older brothers and the three of them are inseparable. Other than occasionally offering her girls' clothes, we don't think much about this issue. My brother, however, seems to think there's something very serious going on. He keeps asking why we haven't taken our daughter to a psychologist who specializes in transgender children. He researches and prints off information about gender reassignment procedures. He thinks she is a "boy born inside a girl's body" and needs appropriate treatment to make the transformation. We just think it's a harmless phase. Is my brother right? Should I look into this more or tell him to butt out?