 what's behind that piece of plastic. You know, you may be using a debit card that's working like cash, but if they don't actually understand what's happening behind the scenes, it's kind of like a math problem. Working it out on a computer or using a calculator, we still need to understand the mechanics of it. And so I know what you're saying. My children are both grown now, but I remember them going to the store with me and wanting to swipe my debit cards.