Is that really your justification? What if I said I wanted a good portion of humans to have, say, vitiligo, for no other reason than "It's a fantasy world?"
No, I said that no other race is defined by a trait that only some of them have, which was the exact justification you gave here: WotC On...
Why the heck would that be the case? even other animals have dwarfism!
Kobolds are defined by their connection to dragons, not the fact that some of them have wings (and you can't play as an urd anyway). Hobgoblins are defined by their warlike culture, not the color of their noses. Sorcerers...
Because that makes no sense. It'd be like if the defining trait of the hazodee was, say, that some of them have fangs or that some of them don't need to sleep. Also, are you seriously telling me that none of the other races ever have deformities?
But what about the myriad of other deformities...
Zee Bashew has a great video explaining the problems:
But more to the point, the issues with humans being Small are many:
1) Why do only humans get this trait? do other races not suffer acondroplasia? Will I also get to play a Tiny halfling?
2) Why is achondroplasia the only disorder being...
Why, though? There are so many issues.
1) Why do only humans get this trait? do other races not suffer acondroplasia? Will I also get to play a Tiny halfling?
2) Why is achondroplasia the only disorder being mechanically represented? What if I want my character to have gigantism? Or autism? or...