If teachers don t give deadlines, some students might never finish much less turn in an assignment. Practically speaking, if there are no deadlines, the teacher will never be able to read the papers and give the student a course grade. Think about the fact there are deadlines in just about every facet of life. Learning to work within the frame of deadlines is designed to teach focusing, developing, and editing along with discipline. If teachers don t restrict the length, format, scope, etc.
Students don t like to see their papers covered in what they regard as criticism.
Whether we like it or not, we are judged by others when we put a piece of writing in front of them, and they have a right to be upset by and even intolerant of carelessness because we are asking them to spend their time reading what we have to say. Actually, you may not believe those teachers who told you they were getting you ready for the real world, but they were. You see, writing well is your responsibility, too. If you never correct the flaws pointed out in your writing, you won t be able to reach the audience as well as you should be able to. A paper that is well organized, developed, thoughtful, and edited is a joy, and the writer deserves accolades.