Answer:
Although I don't really know why. I do know why.
Step-by-step explanation:
Literature is used in our everyday lives. We may not be writing letters to someone, but we use our keyboards and phones to write thoughts and ideas down. Maybe you are saying "hi!" to your friend. Or you might want to ask a question. If you don't learn it, you won't sound fluent. An example would be, "hi how are you." and with literature in mind, a better-revised sentence would be, "Hi! How are you doing?" (See the difference?)
Anyway if you need me to type more words. I could do that!
I hope I helped
:D