Normally, when young artificial human (clones) are seen -teens, or children-, this often mean they are part of some of the more specialized types of clones.
This it's because some general workers, technicians and military clones of lower ranks (Jakos
for example) normally have enough with the conditioning programmed during their maturation in the Maturation Chambers. However, specialists, officers and other high ranking artificial human often are less time in the maturation chamber, being awaken
before -when still in younger biological states, as subadult, teen or child- depending of the specialization.
Once outside the chamber, the clones age like biological humans, so this mean some high ranking clones will take years to be completely trained, but this was decided because not only programmed conditioning it's enough for them, but as well physical and psicological training, and as well, important field experience.
To what now look like a meek redhaired girl in aFra uniform of Azimuth Labs, it's training to become in the future a aFra Specialist of the AZPHAR, or maybe, to become a scientist, Naval officer or commander.