We have raised generations of children without proper math skills, and they sign up for exotic mortgages that they will not be able to afford, get into serious credit card debt, and cannot tell you what is a better deal: a six pack of beer for 4.79, (0.66 per oz), or a 24 pack for 19.87, (0.83 per can). Like my husband says, it's a tax on stupid people.
BTW, I have found that about 10 percent of those shelf stickers have the wrong price per each, making them unusable for price comparison.
A great point . . . in fact, I'd say basic economics or a course on money/money management should be a foundational course at the elementary school level.