No offense to the author, who might be reading this, but it's possible to be too proud of your writing history and cleverness. Many people have had English teachers they loved, and any good writer has had a moment where they realized, or were told, to throw out the rules.
It's essential to note that these moments always come in high school or college or later, when kids already have more than a decade of writing instruction under their belts. No one tells a second-grader to throw out all the rules.
Because you're not actually supposed to throw them out. It's just a teaching technique to break through bad writing habits.