Final answer:
To define someone as old, factors beyond age must be considered such as physical health, attitudes and beliefs about aging, and societal norms and expectations.
Step-by-step explanation:
In defining someone as old, it's important to consider factors beyond just their age. Some of these factors include physical health, attitudes and beliefs about aging, and societal norms and expectations. Physiological processes and health conditions can make a person feel old at a younger age, while others may feel much younger than their chronological age. Additionally, societal and cultural norms play a role in determining who is considered elderly, with different generations and cultures holding varying perspectives on aging.