Autism is a neurobiological disorder that is first manifested in children under the age of three. It is a life-long disability that is often characterized by repetitive movements, perseveration, communication impairments and lack of social skills. I'm going to assume that you're referring to either high functioning autism or Asperger's disorder when you ask this question in regards to Tobias. That being assumed, the primary deficits or characteristic of Aspergers are a lack of appropriate social communication due to to an inability to understand social language, thinking and various other aspects of social communication. At times, EVERYONE exhibits one or more of these characteristics. However, that does not make us autistic. Tobias is socially awkward and is lacking friends, but if you look at the environment in which he was raised i think that these problems are self-explanatory.
That being said, as a professional qualified to give an educational diagnoses of autism, I would definitely agree that "no, Tobias does not have autism." *steps off of soapbox*