Humans need to interact with their kind. Normal humans can do that. But for some, it's not easy to express that need due to their unique condition. Human relations can be mind boggling for people with Autism or Asperger.
That's why I think Temple Grandin's invention, the squeeze machine, is somewhat genius. It provides a simulated hug for people like her, who are a bit uncomfortable with touch and direct interaction with other people.
But I also think modern humans should own their own squeeze machine, for when or where hugs are scarce.