Rowan and his twin brother, Linden, grew to teens. Rowan, typically, is already displaying attitude.
(Player notes: Rowan and Marlen (and Willow) were born in game to Elf and Colin. I did cheat so Elf would have twins, to go along with their Sims 2 versions. However, I was pleasantly surprised to see that they didn’t require CAS “tweaking” to look like their Sims 2 versions. I did change Rowan’s hair colour, along with Willow’s.)