If the child wanted to use speech, what were the parents supposed to do, deny him that opportunity?
You also never said that he was refusing to use his CI, just that he was having social issues.
Also, if the child wants to take his CI off, so what!? That is their decision. But at least they were given the choice. If they hadn't been given the CI, they wouldn't have the option. They would be unable to listen and speak and that would mean less choices and options.