Based on the media reports, I think this case came out the right way. In general, people should be able to make their own decisions. This was complicated because the state should protect children from negligent or dangerous parents, but the parents don’t appear to be negligent in this case.
Furthermore, I am disturbed by the trend where we are willing to try children as adults when they commit crimes, but we don’t give them the right to make decisions about their own life. If this kid committed a crime, he would likely be eligible for the death penalty; therefore, I think he can decide whether he wants to die from chemo or cancer.