But what impressed me most was the sense of camaraderie between the adults.
Most of the people in the audience were family members of the students or staff. Many of them already knew each other and they all shared knowledge of what it's like to deal with special needs every day. It wasn't just an audience, it was a community.
Life is often not easy for people who must deal with special needs, whether their own or a family members. But the blessing of instantly connecting emotionally with others who have to cope with similar things is something "normal" people don't often get to experience.