Answer:
Since our narrator is a 12-year-old boy who gets a D in English, it makes sense that A Day No Pigs Would Die isn't going to be told in standard college-essay language. And it isn't. Rob's not trying to impress anyone with this story, and he writes in a way that's very close to the way he talks: a natural, down-to-earth, hardscrabble kind of language, full of colloquialisms and informalities.
Step-by-step explanation:
Not only is Rob, um, not exactly a master at the rules of proper grammar and usage, but the language he's grown up hearing and speaking is full of unusual, colorful expressions. This makes for some really original, engaging, vivid ways of saying things. For instance, instead of just telling us he's surprised and taken aback by Aunt Matty's grammar lessons, he says this: