... you don't have to wait for someone to treat you bad repeatedly. All it takes is once, and if they get away with it that once, if they know they can treat you like that, then it sets the pattern for the future.
Just as big cities can deplete you with their noise and crowds and sheer sensory overload, a hospital can exhaust you, as its changing faces and personalities blur and strangers wake you repeatedly.
It's not that pink is intrinsically bad, but it is such a tiny slice of the rainbow, and, though it may celebrate girlhood in one way, it also repeatedly and firmly fuses girl's identity to appearance.