>completion of 'brain development' often cited to be around 21-30, with an average of 24-26, although there are some cited numbers that range from the early 30s to the late 40s as seen in certain
>college on average nowadays take 6 years to complete
>most people start at 18, 19, or 20
>18 + 6 = ?
>19 + 6 = ?
>20 + 6 = ?

If the brain is in a learning environment like college for longer, is it more prone to maturation only after leaving a learning environment? Why do some brains mature in the late 40s and others in the early twenties? Does it just keep maturing and changing?