Elgee wrote:
The only autistic trait Young Sheldon doesn't show is stimming. Interestingly, Dr. Shaun Murphy ("The Good Doctor"), whose character IS a diagnosed autistic, never stims, though he has odd mannerisms with his hands and arms (but mannerisms aren't the same as stimming). He also doesn't seem to have any special interests (he's no more "obsessed" with medicine than any of his colleagues). However, I haven't seen all of 2018's episodes, have not seen 2019-2021, but have seen all of 2022 and so far 2023.
In the first season of The Good Doctor Shaun Murphy keeps a plastic scalpel in his pocket wherever he goes. The plastic scalpel is like a fidget object. A gift from his brother.