I've got emotional reading this. Couldn't help it. My best friend had a brother who had a severe CP (Cerebral palsy).He required a wheelchair and had significant challenges in accomplishing daily activities.
He was 20 when I first met him and my first reaction was to cry, because I saw how much his family loved him and how much joy he showed when his mom or sister talked to him and I felt sorry he couldn't enjoy the life the way I did. So I did the least I could and I talked to him and told him my stories every time I visited. I still felt bad though, because his acquaintances were limited to his sister's and mom's friends and he couldn't socialize. Unfortunately he passed away at age of 25.
We definitely need to come up with some effective ways to raise the awareness and change people's attitude towards this subject. I know I will teach my kids to treat people equally, but the situation nowadays is devastating, especially in the developing countries. I really hope this will change in my lifetime.