Addendum
In the article If Americans Can Find North Korea on a Map, They’re More Likely to Prefer Diplomacy (New York Times, 5 July 2017) Kevin Quealy unpacks several studies that show that when people know more about the geographic location of geopolitical hotspots — when they know where North Korea and the Ukraine are, for example — they tend to favor diplomacy over military engagement.
The people who had the most geographical knowledge were, by-and-large, highly educated, but the next most knowledgeable group was…older people.
“Nearly half of respondents 65 and older found North Korea. The Korean War, which ended in 1953, may be in the memory of today’s older seniors,” wrote Quealy.
From these studies it might be fair to conclude that the lived experience of older people may give them quantifiably different starting points for decision making than the young — which seems uncontroversial when I put it that way, but given Americans’ general state of ignorance regarding geography and history I would want more people in the proverbial “room where decisions are made” who had a living, working knowledge of where things are and what happened there in the past, than not.