That is the one reason to learn Dvorak; it naturally causes you to touch type, because there's no sane reason to have your hands wander around the keyboard; all the keys you use are on the home row. QWERTY affords hand wandering and hunt & peck. If you want to "learn to touch type" it's probably more effective to "learn Dvorak" and let the touch typing take care of itself.

I'm not sure about the virtues of paying the stiff startup fee of learning Dvorak if all you know is QWERTY, but if you have already paid I certainly wouldn't suggest losing it. And I'm very, very tempted to ensure that my kids, who are all too young to be typing at all, simply start on Dvorak. If you're starting from scratch entirely the choice is pretty clear to me.

The thing about shortcut scrambling is oversold; I think it sources from people theorizing about what the problems might be if they switched, not people talking about their experiences. In my actual experience, relearning the keyboard shortcuts was a negligible part of the experience.