Maturity : Age Matter?

Assalamualaikum wbt

"Maturity isn't age related. Maturity is the stage when one began to abide God's law without questioning (baligh) and he can explain to others why. That's why in Islam we don;t have any age-based rules because the maturity of a person is different from anothe. When one matures, he understands responsibilities. Age-based rules have so many flaws. You can be a 40-year old but yet still immature"

Really, age doesn't matter. Experiences and understandings that lead to maturity.

Source:
http://wanariefimran.tumblr.com/post/28805940596/maturity-isnt-age-related-maturity-is-the-stage