Birthday

Birthday

Dustin Broke on his birthday

"Grow up" redirects here. For the aspiration Grow Up, see Grow Up.

This section describes features that are only available in The Sims 2 and The Sims 3.

Birthdays occur when Sims go to their next stage of life.

The young adult stage in The Sims 2 is only available with University, and transitioning to or from it is based on entering or returning from college.

Whenever a Sim is two days away from the next age transition, a warning will pop up in the top right corner alerting the player that there are only two days to either get the Sim's aspiration score up (if the Sim is in the negative), or that there is nothing to worry about since the Sim's aspiration is already high.

Twenty-four hours after that warning, the player will get another alert stating that the Sim can age. The player can either buy a birthday cake in buy mode or the supermarket, or click on the Sim (as long as they are not babies) and choose "Grow Up". In order for a baby to grow up, a Sim (teen or older) must take the baby to a cake or wait until they (autonomously) get the interaction to "Help Grow Up" eventually.

Sims grow up well or grow up badly depending on their aspiration score at the time of transitioning, how well they did in school or learned toddler skills. A Sim growing up well will have player chosen traits, while a Sim growing up badly will develop a negative trait.

Progression

Sims progress from birth, through infancy and on to old age and, eventually, death. The following chart shows which life states are available in each game. Unless otherwise noted, Sims progress through each life stage in order from left to right.

Game	Baby	Toddler	Child	Teen	Young Adult	Adult	Elder	Notes
The Sims	Yes	No	Yes	No	No	Yes	No	Children do not grow up into adults
The Sims 2	Yes	Yes	Yes	Yes	No	Yes	Yes
The Sims 2: University	Yes	Yes	Yes	Yes	Optional	Yes	Yes	Sim teens can go to college and become young adults, or skip college and go directly from teen to young adult
The Sims 3	Yes	Yes	Yes	Yes	Yes	Yes	Yes
The Sims 4	Yes	No	Yes	Yes	Yes	Yes	Yes

Notes

A birthday party in The Sims 3.

• Sims will age at 18:00 (6 PM) in The Sims 2. A Sim's age will advance at 00:00 (12 AM) in The Sims 3, but Sims will not advance to the next life stage at any particular time.
• Using a birthday cake brings everyone on the lot to watch and blow noise-makers.
• A Sim can throw a birthday party but it is not required to age.
• If left alone, on the last day of the Sim's age period, they will age on their own.
• In The Sims, babies will eventually grow up into children, but children will never grow up into adults. The only way to age a child into an adult is by using the Age of Instant charm (needs Toadstools and 2x Dragon Scales) in The Sims: Makin' Magic.
• It is possible to have a birthday in The Sims by buying a birthday cake and throwing a party, however the Sim blowing out the candles will not age up from doing so.
• A birthday cake will grow the Sim to the next life stage regardless of how many days remain.
• Using the testingcheatsenabled true, players can age up Sims by shift-clicking one and choose the "Trigger Age Transition." That way, players can make them die from old age instantly as well.

Player tips

• Always buy cake for babies because of the time restrictions on when a Sim ages, Sims may be constantly interrupted by the autonomous interaction but never succeed in aging the baby.
• Wait until a Sim's mood is not in the red zone before aging them.
• Throwing a birthday party and blowing out candles on the cake will give two good moodlets.