I definitly agree with unseenworld on that one. There is no number, which, once someone has passed they stop being an inane bag of protien with the depth of a sprite, to a person in their own rights, with a distince personality and spine all to themselves.
(this coming from the guy who entered the thread to agree with someone)
But if it was a thread about what trait does maturity make, I would say self confidence. Actually knowing just what you are.
anyway, I'll stop rambling now....
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Corvo.....