How do normal people walk? Are people diagnosed as normal? Do autistic people receive a comprehensive list of things they do that are not normal and instructions of how to be normal?
My impression from people watching 20-year old undergraduate students at my Uni is that a lot of them have gaits that seem markedly abnormal to me, like there is a strong left/right asymmetry or their toes are not pointing in the right direction or something. My impression is that general populations of people in a wider age range seem to have better gaits, I don't know if people improve their form with time or if the people with bad gaits aren't walking in public when they're in an environment where they don't have to or have it damage their mobility.