That is true, it's also why I don't know how I could judge it seeing I have only met disabled people in working or social environments and i'm not sure how many people would fit into the 24 hour care category.
As for the article is specifcally asks how many people have had disabled people in their house, their house may not be designed for wheelchair access, for example, and they may socialise with them at their houses, down the pub, out eating.....
I know I've never had a disabled person in my house but, as with my friend with one leg, it was easier for him if I went to his and his wife's house or meet them down the pub. In this survey I would be one of the 9 ot of 10 but it doesn't represent the reality as he was in no way excluded.