Back in College, a humanities professor I had, postulated that Wisdom is meaningless, and there is an assumption that just because someone is older they are wise and someone who is younger and educated via the modern western education system is “smarter” than an older person who is wise. At the time I agree with him, however given my own life experience, I believe he and I were both wrong in this assumption and instead while not all older people are wise, true wisdom can exist.
We see similar terms all the time, such as Street Smarts or Common Sense. These are real. And this type of knowledge is sometimes difficult to explain via writing in the traditional sense of how western education now takes place. In the past we valued apprenticeships, and I believe this was a type of education that imparted wisdom and knowledge onto the apprentice by the master. So Yes, Wisdom is real, and is extremely valuable. Wisdom and teaching styles such as Apprenticeship extremely useful tools in the passing and development of knowledge.