5 years!
I saw attempted assassination of Reagan and pope j.p. I personally have been affected by two big eruptions in two parts of the world, several earthquakes and hurricanes, a revolution, a near shut down of Seattle in the 70s with years long unemployment while we went hunting, fishing and gardening to eat, not hobbies. I watched Challenger blow up and the wall fall. Iran, Iraq, gulf wars and huge tensions with IrAn while my family lived across the Persian gulf and husband worked on military base. 2008 financial meltdown, dude, I lived in the Bronx and was in a subway car that had a gunman in it-1987-it didn't make the news, even
Humanity muddled through while individuals don't always. Try paying attention for 50 years and you will have a more realistic perspective.