I work with teens and young adults with autism diagnosises. I estimate at least 1/3 of them to be complete bullshit. As in no or barely any autistic traits whatsoever. Often times it is parents who have severe problems themselves, mistreat their kids and then seek a diagnosis, when the kids behavioural problems are actually caused by their own abuse. (Psyhiatrist assesment) ADOS right on the cutoff with a way higher (parental assesment) ADI-R is more common than not. Some of them have done a (self assesment) AQ, none of them qualified for autism on that.