If Generations is installed, teens are offered a chance to defy parental authority by pulling pranks, holding a teenage party while their parents are away, or sneaking out while grounded. Without the use of mods or hacks, teens can perform all romantic interactions except Woo Hoo, Get Married, Propose Marriage, or Try for Baby, though they can still take care of existing babies and toddlers in the same way as older Sims.
However, a teen dating another teen who ages up into a young adult will remain listed as their boyfriend or girlfriend, but romantic interactions between them will be disabled until the other teen has also aged up.
Teens can also use gym equipment, and it becomes necessary in order to stay fit.
Teens in The Sims 2 are unique in that they can age up into one of two separate life stages: Young Adult or Adult.
In game, the teen life stage represents a Sim's life from approximately age 12 or 13 to approximately age 17 or 18.