It very literally captures the difference. If your ancestors were elves, you’re an elf. If your ancestors were dwarves, you’re a dwarf. It is very much like the differences between human groups in that way.
Again, I would disagree. They aren't similar to gorillas and chimpanzees, but the difference between them is similar to the difference between those two species. We can quibble obviously. My point is it works to describe the kind of difference we are talking about between the different demihuman races. I mean you are talking about groups with vastly different physical characteristics, age limits, senses, inherent magical abilities etc. That is a kind of difference that is more akin to the difference between species than it is to the differences between human groups (who don't really have differences: you wouldn't give modifiers based on ethnicity for example, but you might give a modifier for someone being a Neanderthal rather than a human of our type).They aren’t like either, which is exactly why both terms fail.
Is there? Elves are, what, a bit slimmer on average and have pointy ears?But the difference between elves and humans isn't like the difference between human ancestries. There isn't really a substantive difference between people who are born here or born over there; there is a substantive difference between humans and elves.
Doesn’t work for species.Also this argument could work for anything.
I mean, why can't there be a genasi dragonborn or tiefling gnome?
Is there? Elves are, what, a bit slimmer on average and have pointy ears?
I was not (or if I was, I forgot!). Do you have a favorite I can go google up? (And probably embarrassedly say I have a copy on my book shelf).There used to be options similar as I'm sure you are aware. At this point, with the proliferation and continued refinement of the various options present, its starting to look like 'custom X' is going to be the solution for such unions.
Doesn’t work for species.
So, magical features.Yes elves lives way longer than humans do. In most editions of the game they have senses such as infra vision, magic resistance, better physical dexterity than humans, etc.
I was not (or if I was, I forgot!). Do you have a favorite I can go google up? (And probably embarrassedly say I have a copy on my book shelf).