How can e-mailing help my future?

E-mailing can help my future like in college, if I have an essay that I need to be turned in by today and I am sick, I can e-mail my essay to my teacher and get a good grade. Also if I need some help on some homework I can email one of my friend to help me with it. And if I am in business I can use e-mail. E-mail is important to business people because they need to stay in contacted with a lot of people to do business in anyway. Plus they can send important documents to the people who need it and that's why it is important to learn how to use a e-mail.