Dementia represents one of the most significant public health challenges.However, some studies found that more than one-third of caregivers could not predict PwD preferences correctly.14 Most caregivers try to compensate for the decreasing abilities to support the patient's well-being but might sometimes project their own preferences instead of putting themselves into the position of the PwD.14,15 Furthermore, caregivers' preference prediction for PwD can subconsciously be influenced by how the caregivers' own life is affected by certain decisions.7 Such preference divergences have also been elicited between nursing care staff and patients.