Final answer:
The life stage between the ages of 18 and 25 is called early adulthood. This is a period when individuals are typically physically robust, complete their education, and start their careers and families.
Step-by-step explanation:
Early Adulthood -
The life stage between the ages of 18 and 25 is commonly referred to as early adulthood or emerging adulthood. During early adulthood, individuals are usually at their physical peak and in good health. It is a time when fertility is at its highest and most individuals complete their education and begin their careers. Additionally, many people engage in forming intimate relationships, such as friendships and romantic partnerships, often leading to marriage and starting a family.
In relation to legal and societal status, the transition to adulthood may vary. In some contexts, an individual is considered an adult at 18, while in others, certain responsibilities and legal rights are not granted until 21.