I agree with what has been said above. It appears that these parents are being very pragmatic in dealing with the future care of their daughter. Maybe there is a degree of 'convenience' to themselves but they, at least, are looking to keeping their child with them for the rest of their lives rather then consigning her to an institution. The measures that they are taking do have a practical purpose insofar as the comfort of the child is concerned.

I, too, would worry about the opening of a door but would hope that this type of treatment would be very carefully monitored to ensure that it is in the child's best interests. Maybe this case will make sure that happens.