Agreed. My point isn't to equate age with experience. There are plenty of self-absorbed old men with the maturity of toddlers “ruling the world” out there.
Personally, I measure experience by patience, kindness, listening for the sake of listening, and a willingness to put yourself in other people’s shoes. It also shows in a more careful approach, less certainty, more appreciation for others regardless of their views or opinions, and a shift away from the urge to belong or impress.