yeah that's true.
But why not learn both :D
You could try learning both, but in my opinion, that would get tricky. Not the actual learning of both, but getting used to being able to do both. If that made sense. What I mean is, I could learn both, and if I set up my keyboard to Dvorak, then I could learn Dvorak, I'd also know Qwerty from my current keyboard. But no doubt, the moment I were to get off of a Dvorak keyboard, and onto a Qwerty one, I would lose all speed, due to being so used to Dvorak. Or Vice-Versa.
Really, I could only learn both, and use both, if I were constantly using both. Like, switching over from Qwerty one day, and Dvorak the next
More-On-Topic; Again, in my opinion, Dvorak looks really complicated and/or cluttered. It just doesn't look like it would be comfortable to use, but no doubt that you could get used to it in time.