If a senior citizen especially above the age of 80 falls sick, it is very difficult to carry out normal activities
Recovery will also take more time.
So a person who is the caretaker of a senior citizen should be very careful to avoid getting infection
In some cases, the caretaker may have enough immunity,and not fall sick, but the senior citizen will fall sick, especially for viral infections like cold and cough.
Hence caretakers looking after older patients will find it better to stay at home, to avoid getting infected.