Do you know anyone who is MORE mature than their age?

Do you know anyone who is more mature than most others their age? Is there someone in your life who thinks, speaks, and behaves like they are 10 or 20 years older? Someone who is independently more mature, disciplined, focused, and responsible than most other teenagers or 20-somethings? By "independently", I mean it's NOT because they have to be, i. e., taking care of a younger sibling because of the absence or neglect of parents or guardians. The freely chose it.

Do you know anyone who is MORE mature than their age?

I work with a guy who is 50 and thinks I'm older than 38 because I speak in complete sentences, have an extensive vocabulary, look people in the eye when speaking, and such. I don't know how much older one could think I am though.

The opposite question (sort of) to what @ManOnFire just asked.

Do you know anyone who is MORE mature than their age?
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