“could make change without a computer”
A teenager working at a fast food store waited on me when that function of their system went kaflooey. All the other dolts at registers stood there with their mouths hanging open. I was in his line. He checked me out, counting out my change without missing a beat. I asked, “Home schooled?” He said, “Yes.”
Heh, Good for him. Good for his parents.
My Mom taught me how to make change, ‘count it back’ properly, when I was about 8 years old and embarking on my first business venture... A Kool-aid / Lemonade stand.
As it turned out, it was a wasted effort; My only customer for two days was my Dad, and he let me keep the change.....
Which almost covered the amount I had to pay Mom back for the ingredients that she ‘fronted’ to me.