My daughter, who is 12, thinks kids her age, or just a bit older, are the ones who aren't represented well in TS4. Somewhere in the age range that TS4 calls "Child," Z passed through a stage where she could have created a realistic-looking Simself. Short of a magical transformation taking place, there's no way she'll be able to do that on her 13th birthday.
The teens who look like young adults will almost always betray their youth if you keep an eye on them for a while. I don't think I need the full range of my teacher superpowers to pull off that trick. :smile: