Maybe they are teaching the kids to live as normally as possible in spite of their disability, in a world where everything is made for taller people? I am disabled, and never knew anyone else with my disability until I was an adult. Even then, I can honestly say, I only have one friend that has it. I really can't identify with most people with my disability, so it really doesn't bother me. I live in a world where people don't have my disability, and I need to assimilate.