Comment by Moru
My daughter had a few disabled children in the same group during her kindergarden/school years. No more than one or two at the same time. It was always started with a proper explanation of the handicap and the problems and how to handle the situations. And after that there was just natural playing with eachother in the group. Children are wonderful at learning, accepting and adapting. It just takes a good teacher to lead them on the right path from the start.
I see the necessity good intentions behind it, but also believe this singling out can lead to developing this sense of shame the user mentioned.