Here's the real kicker: This is all in a world where we can't just shift our shape on a whim. What if we could? If it happened right now, it would feel *freeing* (and terrifying -- what shapes are others choosing?), but if we grew up with that, meh.
If we always were in a world where shapeshifting were common, the ability to *not* shapeshift would seem like a crippling disadvantage. "You can't shift? I'm so sorry. :( I can barely even imagine. I won't bring it up again, promise."