It is so important as a caregiver not to become so enmeshed in the role that you lose yourself. It's neither good for you nor your loved one.
You can care very much about someone without being capable of becoming their primary caregiver in the event of their parents' untimely death.
Alzheimer's caregivers are heroes.
Being a caregiver for your child is part of the job description of being a mammal.
Some caregivers want to reciprocate the care they themselves received as children.