There is a myriad of classifications under the easy name, caretaker. Caregivers are individuals such as nurses, police, firemans, teachers, priests, clergymans, parents, grandparents, aunties, uncles and also nursing home personnel, to call simply a few. I believe it is secure to claim that a person that looks after an additional can be identified as a caretaker for they all have the incentive to look after others.