In the UK, support from the NHS and social services tends to focus on diagnosis and the needs of the autistic child, rather than on the family as a whole. The sparse family support that is available tends to be for parents, such as respite breaks for those with a severely affected child.
However, there are many volunteer-run support groups, some of them provided by people who themselves have an autistic child or adult in the family. Additionally, there are groups on social media and email/online bulletin boards that people can subscribe to.
OpenLearn - Understanding autism
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