You can watch them grow and navigate the different aspects of life. One of the main features of the Sims 4 that you will really enjoy is the ability to create your family. How Using the Age of Function Makes the Game More Interesting We will give you a step-by-step tutorial, which you can implement in the next game. In our article, we show you how to age up in Sims 4. While you have the option of letting your character age naturally, sometimes you want to speed up the process. The more they age, the more abilities you get. It gives you the different stages including baby, toddler and child, teen and adult stages. Like the predecessors, you will find various life stages in the Sims 4.