Interesting viewpoint. I guess I started frowning on calculators in school one time when I was paying for a meal. My roommate and I both had the same meal, each coming out to $9.99. I was paying for both. Because there's an extra fee for using a debit card, I asked if I could pay for both meals together. The girl at the desk asked if I minded paying for them separately, as she didn't have a calculator and couldn't add $9.99 and $9.99.