Why don't we see more height-blind casting?

"The days of circus freakery as entertainment are long gone – and good riddance." "And dwarf actors don’t leave their height in their dressing rooms in the way the dame leaves his costume or the principal boy her tights. Dwarfism is a medical condition and shouldn’t be ridiculed, off stage or on." Read this article about how it is time for little people actors to be taken seriously! CLICK HERE TO READ