I graduated in 1961 and did a paper on Metrification considerations when I was 30 years old in 1973 as I'd returned to college to finish-13 years to get a bachelors? not bad huh?
It's comical but costly the stupid resistance of USA avoidance of metric system-no telling how many jobs it coast us over the years. If your a defender of non metrics your flat out wrong IMO.
Far too little space here(plus too lazy too type that much!

) to make the point plus it's an old subject in a new thread?
I also did a paper on "Rails to Trails" back then-turned out the local rails got pulled and the local politicos were so enamored with certain people to gain some real estate that they missed a golden opportunity to gain millions in bike tourism that will now never happen! This in a rural scenic area with large Cave Run lake nearby & so on-too bad folks cannot see beyond their nose sometimes...