When I go with my mom to see my brother's doctor, I always ask the doctor questions about autism. They are presented with situations which cause them to consider the plight of others and the gifts, abilities, and advantages most people take for granted. I am constantly amazed at their wisdom and insight. Even though my sister can't talk, I know she is thinking. She shows us with her eyes.
People can talk and think in lots of different ways.
They don't need to use their mouth. They can be more appreciative of the differences between people because they may have witnessed prejudice toward their brother or sister. People with disabilities should be treated just like anyone else. They will brag about the accomplishments of their brother or sister. They also discuss their pride in how the family has faced the challenges.