You have expressed your thoughts very well in answering all these questions.
Of course, I agree with you that a single person cannot take care of a sick person. Many such situations arise. In front of a sick person when he needs another person. But a single person is unable to lift the sick person and carry him anywhere. Therefore, he needs the help of other people and sometimes the circumstances become such that if he has to take care of himself alone, he may also get nervous.