For most of the history of the game, Sims jumped from being Newborns directly to being Children. It was a bit jarring to see a Sim go from being swaddled in a blanket to looking around nine years old in a (literal) flash. Fortunately, the developers agreed and started introducing new age groups to bridge the gap.
They started with Toddlers, a groundbreaking addition and the first new life stage in many years. Earlier this year, they made another revolutionary change by introducing Infants, a new life stage between Newborns and Toddlers. The addition of Infants and Toddlers has made the game feel more realistic and opened the doors for more complex gameplay.
If you have the Growing Together pack installed, there are lots of things your Sims can teach an Infant. Without the pack, interactions are more limited; however, there are still plenty of cute things your Infant can do. Perhaps you are ready for your Sim’s Infant to become more mobile and start gaining skills. Perhaps you’re just not feeling this new life stage and are ready to move things along. If you are ready for your Sim to age up, but it isn’t their birthday yet, you are in luck! It could not be easier to age up Infants fast in The Sims 4.
The first method to age up your Infant does not require a cheat or any complicated gameplay. Everything you need to age up your Infant Sim is probably already on your home lot! All you need is a functional kitchen, and you are ready to go.