Fucking hell tiredgirly. I don't really know where to start.
Disciplining children who have a cognitive disability is a whole different kettle of fish to disciplining NT children.
Gawp at women exercising? It was what Rosie wanted to do. Who gives a shit? Let her watch people running - it makes her happy. Are you really lacking in empathy to the extent that people need to all be the same?
Rosie has no concept of what is OK and not OK according to social rules. Her parents are trying their best in a difficult situation.
Do you know what makes raising a child with a disability hard? People who judge. People who can only see the world from their point of view and judge your parenting accordingly.
Re the sibling. 1) Not sure why you feel sorry for him? He seems to have a good relationship with his parents. 2) If you are seeing something that I am not seeing what would you suggest the parents do differently exactly.
Although honestly I think you are quite enjoying winding people up here.
For once there is something on TV that shows the reality of raising a child with a disability. Not the Children in Need special with the disabled children that everyone love for being plucky, but the hard, daily grind of raising a child with a disability and all you see is parents indulging her and a son who is somehow to be pitied. Look again. Seriously, stop your judging and look at hear what people who live this are telling you. Stop judging and try some kindness and empathy.