For many persons with disabilities, there is a need to have personal assistance as a key support service. Whether this is someone to help a person with motor disabilities, a person with visual disabilities who needs a guide or a person with hearing disabilities who needs a sign language interpreter, these are often key services to permit independence and cooperation. Rule 4 also speaks to this.
This is also the area where, it is argued, that providing livelihoods for persons with disabilities is costly. Why hire a worker who needs to have an assistant? Is it a matter of getting one for the price of two?
This is a good point to stop and reflect on whether these are realistic preconditions and whether others are needed..