> So what if, whaaaat if, we made a little box called Customer (call it a “class,” as in the taxonomical sense, like a Customer is a subclass of the species human, which is a subclass of mammal, etc.), and we put the data and methods relating to customers into that box. (And by box, it’s literally just “public class Customer {}” and anything inside the {} relates to that particular class.)

It's a solid effort, but for someone who isn't technical, jumping from,"ok we have a thing called a class" to "and that's object oriented programming!" is just not something you can do in one paragraph, no matter how well it's written.