Then, in Part III, this Note will discuss and analyze the issue of establishing a uniform constitutional definition of juvenileness that ends at eighteen years of age.
(95) The trend of changes in social science, psychology, cognitive science, and neuroscience, which now points to differences between juvenileness, adulthood, and a stage in between the two, supports the holdings of these three important cases and indicates the potential for further change.
The difference in cutoffs for juvenileness across the states presents problems.