Teens height. Many or most teens today are close to adult height. When I was in college, I saw some teens who looked like they were in their early teenage on the way home, but they were basically close to adult height, some girls even taller than me (5'2). Even when I was in the first year (2011) of middle school, 3/4 of my classmates including me had adult height (people usually goes to middle school at 12-13 in my country). Although there not be so many overall, my class was indeed relatively taller on average, but by the second grade there wasn't much difference between my class and the overall
In TS4 teens have same height as adults
If the timeline, according to some sims age changes, I think TS3 is late 1980s or early 1990s
Edit:
If it was the late 80s and early 90s, this style may be a bit "time traveler"
https://s1.ax1x.com/2020/07/28/aECj4x.jpg
