One of Robert Heinlein’s characters says, "A human being should be able to change a diaper, plan an invasion, butcher a hog, conn a ship, design a building, write a sonnet, balance accounts, build a wall, set a bone, comfort the dying, take orders, give orders, cooperate, act alone, solve equations, analyze a new problem, pitch manure, program a computer, cook a tasty meal, fight efficiently, die gallantly. Specialization is for insects."
I don’t know anyone who can do all 21. (I think I can do only 13.) Uncle Farmer, who never went to college and who turned 90 last year, could do at least 16 of them, some self-taught. His health is poor, and he’s now in the hospital. My thoughts are with him and My Aunt The Winemaker.