You can age for a thousand years, and still, no wisdom will ever manifest, because for true wisdom to manifest, the mind must be free, in the actual sense of the term, and the head must be held high with utmost nobility.
Experience does not give you wisdom. Wisdom comes through liberation of the mind. And since most humans live a conditioned life, they never get liberated in the first place, hence they never even have the taste of wisdom.
Shallow intellect is worse than ignorance. Ignorance can be treated with knowledge, but shallow intellect, that is illusion of knowledge, is untreatable and quite dangerous to the progress and wellbeing of humanity.
Truth in the human world, is constructed, defined and then reconstructed by the human self.