There's no need to be offensive Sandman. You are in no position to judge my ignorance or otherwise on matters of musical theory.

While you can reach Dorian mode in the way you describe, to start from the major scale and to describe Dorian as "a major scale" with some adjustments seems to me to miss the point, and for anyone trying to learn musical theory from your posts this description is potentially misleading.

As Jerry says, the crucial points of the Dorian mode are that it's a minor mode and that it differs from the natural minor (or Aeolian mode, if you prefer) by having the sharpened 6th.