Why aren't there half-fiends, tiefling, fiend, anthro, shifter, changling and half-celestial races available for players?
Tieflings, fiends and half-fiends would have trouble interacting with NPCs but isn't that what role playing character is about, ovecomming adversity?
Shifters and Changlings are in the campainge setting.
Half-Celestial characters would be a balancing and add more flavor.