My older dd (she will be 9 next month) is very much like this. She is extremely mature emotionally and is in a hurry to grow up. She already wants to discuss global topics such as why there are nuclear weapons and wars, labor exploitation overseas, poverty in Africa, and immigration issues. I really try to avoid these topics b/c she is an anxious child and while she has a curiosity to know about these things I question her ability to discuss them without becoming anxious. Because of this we have a no news on t.v. policy at home.