"Well, you see, in the world of Elemental, kids really do grow like weeds. While they take around 18 years or so in our world, it only takes around 2 years, or 100 weeks in Elemental..."
Let the clone wars begin! I like the time scale as it is now, although having children show up a little earlier (64 turns/seasons) wouldn't hurt my feelings.
Old enough to breed, old enough to defend the kingdom I say!
Note the fact that children in Elemental don't come of age until they are 25 (maybe the seasons are shorter), and grow old after 600 turns (150 years).