As I thought about those categories, it reminded me not of autism but of those without disabilities in their interactions with those who do have some form of impairment. If you think about it, people without disabilities have social skill deficits in the way they interact with persons with disabilities.
Perhaps at first they are socially indifferent. Maybe they really don't know about persons with disabilities. Because they don't know they are kind of indifferent, not really caring one way or another. But then something happens in their lives where they are confronted with the reality of the experience of disability. Because they are inexperienced or scared or just don't want to be bothered, they then move into social avoidance. They know, but they avoid any involvement. Ultimately, perhaps they cannot avoid interactions with someone with a disability so they move into a phase of social awkwardness. As we have discussed elsewhere in this blog, if I am in a situation with someone with a disability and it is socially awkward, chances are, I am the one bringing the awkwardness to the situation. See "I bring awkwardness to the situation."The person with the disability is fine. Those three areas are where Wallin left off, and he once again was talking about social skill deficits. But these social skill deficits in those without disabilities may indeed be a progression and perhaps they lead to a fourth category, social involvement. I care now. I want relationship now. I am involved now.
So perhaps it is a progression from indifference to avoidance to awkwardness to involvement. Are you on this progression? Work through YOUR awkwardness and find your way to involvement. People with disabilities are just people. Maybe if you choose one of them as your friend, that person will choose you back.