>Yes, in general people place a lot of value in the wisdom
I don't think that holds as an explanation given that 1. there's not a lot of wisdom going around among the geriatric leaders of the world, 2. this is a pretty rapidly increasing trend, not some fact of history.
Historical leaders used to be younger, including after accounting for increased lifespans. Just look at the founding of the American Republic. It's much more a sign of two things. Increased decadence and civilizations that are themselves at the end of their rope, and in democracies in particular a geriatric population that keeps voting itself into power based on their own interests.
I don't think that holds as an explanation given that 1. there's not a lot of wisdom going around among the geriatric leaders of the world, 2. this is a pretty rapidly increasing trend, not some fact of history.
Historical leaders used to be younger, including after accounting for increased lifespans. Just look at the founding of the American Republic. It's much more a sign of two things. Increased decadence and civilizations that are themselves at the end of their rope, and in democracies in particular a geriatric population that keeps voting itself into power based on their own interests.