Understanding Maturity - Qasim Ali Shah

We have seen people who are at their 30's but still are immature and there are folks who are just in their teens and their mental growth is astonishing.
So what is the factor behind early and late maturity? What is the phenomena of getting matured?
Mr. Qasim Ali Shah (Author of Kamiyabi ka Paigham) is explaining the maturity and its aspects in this short MyLearningz talk

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