Lycanthropy is a disease, and should probably be in the DM' s guide.
Don't let the werewolves hear you calling them a disease. They are a proud people with slight emotional issues to deal with.

Lycanthropy is a disease, and should probably be in the DM' s guide.
Tieflings conceptually are far more common than anything you can find in the original player races so they aren't exactly that exotic.I like exotic races like dragonborns, tieflings and devas, but I'm not so sure they should be in the core rulebook.
This. I have no problem with Dragonborn in a particular setting like Dragonlance or something. But they don't belong in core. Core races should be the traditional D&D races.
Don't let the werewolves hear you calling them a disease. They are a proud people with slight emotional issues to deal with.![]()
I say we split the difference on tieflings and assimar and just make cambions and planetars PCs again. Why have "plane-touched" when you can have the real deal?
While I like dragonborn in theory, I wouldn´t want to play one for real. They are too far away for me to play.
That beeing said, I want races categorized as classes: common, uncommon and rare.
So you can start with the big 4 races. Human, Elf/High-Elf, Dwarf, Halfling as common. Gnome, Half-Orc, Half-Elf and Goliath, and all others as rare... or something like that. This way, the DM can chose which category seems appropriate for his campaign.
This. I have no problem with Dragonborn in a particular setting like Dragonlance or something. But they don't belong in core. Core races should be the traditional D&D races.
And then, again, people who don't want to play tolkien-like D&D should wait months before play other races? Why? Because of "tradition"?
I'm still waiting to see data proving that Halfling is a popular race in campaigns where more than "traditional" humans/elves/dwarves/halflings/gnomes are allowed.