You said that you would think that kids know about the politics before they enter. I will say they dont or at least 90% dont and I was one of them. Military right out of high school had no idea about anything I just wanted to serve my country.
So if one of your students that you teach drops and gets a GED works consruction and is a baseball fan you would not want him to have a right to vote. Is that correct. Because he or she is not educated enough to make an informed decision. What is it that you teach anyway?