Writing changes you. Not only do you see the world differently, but you notice things. Weather... Now you can describe it in a bone chilling, vivid way where everyone can get it. People... the description is detailed to the point anyone can find this person.
Our writing styles change too. We learn not to double space after a period. We learn the correct way you use quotations.
"I hate that 'said' bastard!" and He give me the "Shut up, please!" look.