The starting areas are what make the two Burning Crusade races such a study in opposites.
Blood Elves are set in their old homeland of Eversong, learning how to cope without the Sunwell. Some Blood Elves can't handle their addiction to arcane magic, and turn into the Wretched. The Scourge and Arthas are to blame for this, we're told, but there's hope for the Blood Elves: they know that there's an Eden awaiting them in a magical place called Outland. You learn to deal with the Wretched, push back the Scourge from the infected forests of Quel'Thas (renamed the Ghostlands), and wreak vengeance on the necromancer Dar'khan Drathir.
By Contrast, the Draenei starting area is an unknown. They've just crash landed on Azeroth, hunting for this "Alliance" to help them out with the Burning Legion, not knowing where the hell "here" is. You start off thinking that your group is the only batch of survivors, and you pitch in to help the group survive. After a while you discover other Draenei and you are led through the starting area by the hook of finding others of your kind. You also learn very quickly that Blood Elves have followed you there to eliminate your threat.
Having played several Blood Elves, I know without a doubt you never hear about any of the following while you're leveling:
- Outland is in turmoil with the Burning Legion
- You're the bad guy
- The Scourge
- Arthas, Illidan and their relationship to the Burning Legion
- You landed on the Blood Elves' homeland
I have no idea if the Draenei are fed a steady diet of "hate the Blood Elves", but if the BE model is transposed onto the Draenei, they won't have an inkling up until they reach Outland that a whole boatload of despised, evil Blood Elves are now fighting on your side. Talk about hitting you with a 2x4.
I have to admit that Blizz has done a bang up job in creating stark differences between the two races. If I develop split personalities later in life, maybe I can blame these two races for my malady.