H., good news! I'm surprised none of the professionals working with your friends son haven't told them about the state's requirement to provide an education for all children. They have to support an Individual Education Plan (IEP)
which has to start before 6 so that the child is ready for school.
The parents should contact the Multnomah County Educational District Office.
My grandson was not talking at 3 but he was very social. They, the school district, diagnosed a speech disorder and he is enrolled in Head Start so that he can get speech therapy. He is not otherwise eligible for state assistance because the household income is too high.
He is now talking some which is encouraging. And his classroom teacher, the speech therapist, and a social worker all talk with his mother at regular intervals.
You can learn about this program on the Internet. It's federally funded. I think that I googled IEP or spelled it out even. You can also learn about autism on the Internet. If you can't find anything send me a message and I'll search again.
Autism is a scary diagnosis. But it is not hopeless. These therapists should be able to talk with his parents and relieve some of their fears. The pediatrician most likely isn't able to diagnose autism. He relies on the specialists.
I am encouraged that their son has made improvement. And it's good that they have already begun to provide him with professional assessment and therapy.
My grandson is now 3 1/2 and his speech is still very difficult to understand. I'd guess he's mostly at the 1 year old stage. He says as much a two words and sounds like he has an accent but we are hopeful that he will continue to improve and be ready for school by the time he's 6. He didn't speak at all when my daughter had an evaluation done last spring.
And the school has to help these children with difficulties. It's the law.
I can realy understand their despair if your friend's son doesn't interact with his parents. And I don't know if that can be improved. The professional people with whom they work should be able to respond to that concern.
Send me another message if you have questions. I may be able to help you. Your friends are so fortunate to have you as a friend. M.