Final answer:
Career clusters are groups of occupations that share similar characteristics and require similar skills. While family and societal models can guide a person towards a certain career, personal choice plays a significant role in determining one's occupation.
Step-by-step explanation:
Career clusters are groups of occupations that share similar characteristics and require similar skills. They help to organize and categorize different types of jobs within broad industries. The choice that is NOT a career cluster commonality is personal choice. While family and societal models can guide a person towards a certain career, ultimately personal choice plays a significant role in determining one's occupation.