So, why isn't this a thing yet?

[Kosmos992k]

I could see an age bar implemented in the future that changes characters overall look, be a great diversity addition to characters. Only problem with that would be the shear amount of design work involved, age is a dramatic appearence changer though it also depends on how many age gaps are implemented. I could see teenagers/young adults battleing. Hell, lots of jrpgs and games do that. Dunno about kids though...

Would be easier to add lower settings to the height slider and a more youthful face to the face line up. Job done.