Yeah, I don't see any real link between wisdom and age that's
   valid. It's culturally embedded ageism. The brain is gooey and
   moves and shifts throughout our lifetimes, changing
   configurations. It's not the neat and clean drawing from 100 yrs
   ago that ppl use as a "map of the brain". That's a stereotypical
   brain but they're much more strangely fluid (well, gooey) than
   that. [we see preserved brains - they're not normally like that]
   So can you be wise as a teenager? an adult? a kid? yes you can.
   There's no way to measure depth of experience. You can have a
   strong experience or realization when you are young that is
   wisdom. You can make connections between things that everybody
   else is missing when you are young. You can spend your whole
   live going in circles and experience very little wisdom. I don't
   think there's a correlation. That being said, if you're BROAD
   minded (which you can be at any age), you're more free to make
   lateral connections between ideas. The more we learn and digest
   about ourselves and the world around is, we can sometimes gain a
   broadness that can lead to greater wisdom than we had before.
   Yet also, we can become more narrow minded and LOSE our wisdom
   due to lack of using it, thinking more stereotypically rather
   than less, etc. Often lateral thinking increases in the elderly
   because their axions have thinner sheathing. With thinner
   sheathing, comes more cross connections, a broader view of
   reality, greater wisdom. So for many, that's the source of
   elderly wisdom. It's not a negative at all. So, many ways to get
   there. == Some people mistake "wisdom' for "worldiness". This is
   why I don't think "number of experiences" makes much of a
   difference. "Your future life is hidden in your daily routine."
   That was one of my shower-thoughts when I was 14 yrs old. I'm 44
   years old now. Is that statement any less wise then than it is
   now? No. Age doesn't make a damn bit of difference to wisdom and
   neither does brain development stage to be honest. It's all
   about understanding things on a deep level.