Research in the past several years has shown that children can outgrow a diagnosis of autism spectrum disorder, once considered a lifelong condition.
From https://www.news-medical.net/news/20190312/Vast-majority-of-children-with-autism-have-difficulties-that-require-therapeutic-educational-support.aspx
from https://healthnews010.wordpress.com/2019/03/13/vast-majority-of-children-with-autism-have-difficulties-that-require-therapeutic-educational-support/
From https://heidifrost.blogspot.com/2019/03/vast-majority-of-children-with-autism.html