Beside the 8 Traits that you can pick in Create A Sim, Toddlers also get to earn 2 Reward Traits that you will transfer in the Children life stage. Here’s how you can earn them!
The Happy Toddler trait is rewarded to a child who just aged up from a toddler life stage who had all 5 toddlers skills (Imagination, Communication, Thinking, Movement and Potty) to at least Level 3.
Your Sim got a good jump on skills as a toddler. This helps them gain all skills a bit faster.
The Top-Notch Toddler is a reward trait rewarded to a child who just aged up from a toddler life stage who had all 5 toddler skills maxed out to Level 5 (except for potty skill whose maximum is level 3).
Your Sim got such a strong jump on skills as a toddler, they improve all other skills extra fast.
The great thing about these reward traits is that the effort you put into your toddlers will influence the gameplay of your Sim as he/she grows up – meaning that, if they have any of these 2 traits, their skills will build faster than usual.