People should know how to and be able to write and read cursive. Some day, they may want to read a historical document written in cursive. Some day, they might want to write a personal note in a greeting card or write a love letter and have it not appear to be written by a child. It doesn't necessarily have to be pretty as long as it's legible. Whether used every day or not, it's something one should be able to do.
I'm planning my next career as a cursive reader, charging lots of money.
They also should be able to do simple arithmetic, like percentages and making change, without a calculator.
Recent bill at grocery store was $5.99. Handed clerk a $20 and $1. She tried to hand back the $1. (Why don't they just punch it into computer and let computer do the thinking?) I told her doing it that way, she won't have to give me a bunch of ones. She punched it in and somehow managed to fumble that, saying to me that she messed that up. Trying to rescue her, I told her she owed me one penny and $15 which she gave me. Granted, probably hardly anyone pays with real money, but that's just something people should know how to do, particularly those who work in retail.
Don't people want to know how much 25%, for example, is before hauling an item up to the check-out ... being capable of quickly figuring percentages in their head? Don't people want to know how many of an item they can afford when it's on sale ... being
capable of quickly multiplying in their head?
There are many things one should be capable of even if that skill isn't used every day. Not to mention that acquiring various skills develops and exercises the brain.