My mother thinks she may be AS. she toe walks, is fairly isolated, fairly socially inept and eccentric and loves facts, reading, current affairs and listening to the weather. She is also very routined and rigid and struggles with dynamic thinking.
She now sees I have AS (formally dx'ed) and also says two of her other children would probably receive formal dx'es if they were to pursue them.
I am one of 8. Of the others, she agrees one is severely ADHD and she also maintains our family is riddled with ASD traits - far moreso than the norm.
My mother reached this conclusion through concentrated and thorough research over a couple of years.
I might add, if one comes from a family where one or both parents are possibly on the spectrum, the whole notion of what fairly "normal development" consists of, is skewed. My mother now realises there is an awful lot she did not understand about her own children because of her own view of what it is to be human. She viewed our development from her own undiagnosed ASD paradigm, in an era when the issues we presented with were blamed on poor parenting, abuse and nothing else.
it has been quite amazing to see previous mysteries about my family and our 'oddities" answered and it is quite a gift to have a mother who has had the intellectual thirst and openness to consider this information and weight it up and absorb its relevance in the life of several in her family. We are, in short, an "autistic" family. that does not mean all are on the spectrum, but it does mean there are several of us who are, and the others present with many traits and would tend towards an NT/AS or NT/ADHD presentation or a combination of these.
My view is - be patient with parents. Offer information that is up to date about ASD's. And DO NOT try to force others to accept a diagnosis that may be unwelcomed in their lives or their personal construction of self-identity. Acceptance of a label or a dx is a personal choice. and this, in my view, always needs to be respected.
I could challenge a few of my siblings about being on the spectrum. I could also challenge some relatives. But why? Each human being has their own journey with regards to how they choose to view themselves and their life history. All I can do is live in accordance with what is right for me and applicable and helpful to me.
It is a difficult point of "surrender and acceptance" to reach. It is not easy. But it is better than ramming a DX down the throat of family members who may not really welcome it.