Why = So that everyone can communicate with each other clearly. Literature breaks all the language barriers that could prevent a masterpiece (which is why many foreign inventors or prodigies abroad had vigorous English courses)
How = School, internet, books, even just speaking in general can help
I think the most important element of a story is the plot. To me the plot is what makes the story intriguing and fun to read. Without a plot I would personally find the story boring and wouldn’t want to read it.
