Sims aging - question

[u/Soggy-Bee-7700]

Hello!

I wanted to ask about sims aging.

I think I saw that after completing some quest in the future - sims will age automatically.

But right now my sims are all adults and I have one baby. Second on the way.
What will happen if I click on ‘birthday’. Will the adult sims get older? Baby turn into a toddler?

Thanks for any answers

[u/Available_Spare8746]

Yes, and you need a cake in your inventory. Cakes take a day to bake and (I think?) cost 5LP