Can I just clear up a couple of things
I m not talking about handing cards out to any old passer by, just in situations where someone has stopped to pass judgement,or are upsetting my family by staring and rather than me blowing a gasket, giving them a card saying something like Polter suggested -''minihazey has a chromosomal disorder which affects his x, y and z. He can get overwhelmed sometimes so please don't stare". I would assume (and hope that this would be a rare occurence!)
Ds does not have autism, he has a genetic condition, no speech, health problems and learning disabilities. I asked about the cards on the FB page devoted to his condition and many of the people on there had the cards (some for their adult offspring who carry them when they are out with their carers)
I am quite open about ds's condition, we live in a small town where everyone knows everyone, I have found on the whole that people are very understanding when they know that ds can't speak, and is frightened by certain things etc. I may be naive, but I do think that sometimes explanation does help understanding, and whilst I don't think it is our business to educate, I know that I have been educated on here and real life by meeting others with disabilities, and have a greater understanding of why people might display behaviours which might otherwise have seemed peculiar to me. There are certainly times when people on AIBU have said that they have a greater understanding from reading posts by people from these boards.
As I said in my op part of me does feel uncomfortable about them which is why I was asking for opinions. My discomfort comes from the cards I have seen that state things like, I'm not naughty...I have autism' and 'love me unconditionally...I promise I am worth it!' (2 examples of cards that came iup from my googling). Really I just wondered whether something factual and informative would help. In my googling I have seen cards for dementia sufferers, people who are deaf, people with spd etc.
Thankyou to everyone who has given their opinions, especially those who did that without making me feel as though I am somehow letting down my ds, betraying him and acting akin to a nazi with respect to people with disabilities, by even considering it. I did not ask about opinions on this somewhere like AIBU where one would expect some pretty abrasive views, but on a board which, to me at least, has been a place for seeking support and advice.