It's much easier to use a cheat code first push ctrl, shift, and c at thesame time the screen turns gray put in testingcheatsenabled true press enter then go to the sim you want to age and push ctrl and shift while holding them use your mouse to click on the sim you wish to age then you will get an option to trigger age progression click it and they'll have a birthday party....or you can just go buy a cake and have a birthday for that sims that works too
That's what they tried and didn't work (trigger age transition). It made the rest of their sims age again.
