Should Juveniles be Tried as Adults?

I think the juvenile system should stay the same. We should have it because kids' brains' are still developing. If you were really good at something before, like learning languages, but you won't be as good at it later in your life. That part of your brain that makes decisions is very weak when you are a kid. For adults, that part of your brain is done growing. Also, if an eight year old commits murder, it's not right fro that kid never to have a chance at life ever again. That's why I think the juvenile system should stay the same.