Post seen at Kevin Baker's place,
The Smallest Minority. He titled it "Modern Education" (and I could have put it in our Education section); however, I believe the economic angle is dominant, in that these mal/mis-educated young people are hired (when they *are* hired) because, as machines do the mental-math work if operated properly (which is also often not the case), they're not worth paying more than minimum wage. The ability to do arithmetic in one's head is a rare skill today.
One comment there stands out, for two reasons:
DJ • 4 hours ago
The problem is not that these people cannot do math, nor is it that they cannot do simple arithmetic. In fact, it's not that they cannot count. The great problem is that than do not know, and cannot learn, that they can make change simply by counting out the change.
The total is: "15.54".
Count a penny: "15.55".
Count a dime: "15.65".
Count a dime: "15.75".
Count a quarter: "16".
Count a one: "17".
Count a one: "18".
Count a one: "19".
Count a one: "20".
Hand the change (which, by golly, totals $4.46) to the customer and put the twenty in the register.
This is how it was done for generations before machines began thinking for people. Now the people don't think, they can't think, and they don't know that they can't think.
That's the first reason, and that's how it's done, no "machine needed". When I stood in as cashier for Target (front line "management" filled all holes, especially on the weekends), I counted back change even though the register made it unnecessary.
Here's the rest of DJ's post and reason number two:
A solution to a problem that didn't exist has created a problem that has no solution. This is known as "progress."
Otherwise known as government's raison d'etre today.