Melichoir, something you may not be taking into consideration is, it's almost a fantasy standard so to say, that there is a race of very short 'child-sized' people in so many fantasy worlds. For example the Hobbits in Lord of the Rings. Even in the books, while fully adult, many of the taller races would perceive them as children. Many MMOs have their cute small races - Gnomes in WoW for example are much like Lalafel; cute small with cutesy voices and animations. If people would ask for more height discrepancies - all races, especially the taller, to be allowed to have their 'shortest' shorter than they are, instead of asking for child options, they'd likely get farther.