People should be careful with basing psychological stereotypes on gait, as there's already an extensive legacy framework of stereotypes based on gait—are these new stereotypes meaningfully different medical observations grounded in facts, or are they just more stereotypes? Literature on Native Americans, for example, often claims that they walk on the balls of the feet in distinction to "the Anglo," who walks on his heels. For example:
> Our sources say that Native Americans tended to land on the
ball of the foot (a "forefoot strike"), or flat-footed ("midfoot
strike"), rather than landing on the heel and rolling forward
("heel strike"). [0: 90]
> Our sources indicate that Native Americans commonly walked
with toes pointed straight ahead or turned slightly inward,
rather than turned outward. [0: 91]
I've pulled just one article here, but there's a huge trove of racial and ethnic gait stereotypes with all sorts of moral implications. It's important not to repeat that stereotyping when trying to address autism.
[0] Ranalli, B. 2019. "Thoreau's Indian Stride." The Concord Saunterer 27: 89-110. https://www.jstor.org/stable/45271429