following the law as written for an 11 year old defendant would be a good start. I’ll admit to also being unqualified but I don’t need to know exactly what point a person is fully competent to be treated as an adult by the judicial system to know that an 11 year old hasn’t reached that point just like I don’t need to know the exact coordinates of the Mexico-US border to know that I, as someone in Pennsylvania, haven’t crossed it.