How old does an adopted teen have to be in Missouri in order to move away from home?

The legal age of majority in Missouri is 18, the issue of adoption is not relevant as it has no bearing. There is a misconception in the state of Missouri because of a stipulation in the juvenile code. The JC states that a person who is at least 17-years of age is an "adult". This law relates to court proceedings only and designates the age at which the person can be tried in an adult court it does not override the state's legal age which is 18.