I have a brother who was raised in the era of calculators and never had to memorize times tables or really understand the way numbers work. He’s really bad at it. He could never figure a 15% tip, so always leaves 20%, or about that. He can’t tell if something isn’t right with a bill, so just pays it. I have a daughter who isn’t great with numbers either, and when we were Christmas shopping couldn’t figure out which coupon was best to use. Is $15 off $50 better than 20% off?
Either will pay just about anything someone tells them to and they have no idea if they are being overcharged or getting a deal.