As an elderly sitter, your duties are to provide companionship and non-medical care to senior citizens. You assist your clients with their everyday activities and errands, such as grocery shopping, cooking, cleaning, and traveling to appointments or leisure activities. Some elderly sitters work around the clock, while others may only work part-time or when a family member is unable to provide care. Your responsibilities may vary slightly depending on whether you work in a client’s home or a senior living facility.