Adult Two adults in The Sims 2. Adult is a life stage in all games in The Sims series. In The Sims 2 , it is normally the longest life stage in a Sim 's life; in The Sims 3 , it is the same length as the young adult stage. In this stage, Sims can take up full-time careers , get married , give birth and adopt children. In The Sims , they are the only Sims who can prepare food.
Young Adult Two young adults in The Sims 3. A teen Sim right , supported by her father, is about to transition to a young adult and go off to college. When a teen Sim moves out to go to college , he or she transitions into a young adult and remains one for the duration of his or her college years.