Well for school assignments we were generally expected to turn in the rough draft first. At least in high school, and sometimes in college. So rewriting was generally always expected.
Either way, there was no way I'd turn in my rough draft as a final, as it would either be a mess to look at, or terribly/confusingly written.
I just don't see the benefit of imposing a linear process. I prefer to start my writing with what comes easily, and immediately start tweaking.
I guess it's an age thing. I never turned in a rough draft and basically never typed an assignment until college for a class (leaving aside a thesis, etc.) The only time I really did back and forth editing was for newspapers.
Either way, there was no way I'd turn in my rough draft as a final, as it would either be a mess to look at, or terribly/confusingly written.
I just don't see the benefit of imposing a linear process. I prefer to start my writing with what comes easily, and immediately start tweaking.