This remark seems a non-sequitur. I didn't post anything about what does or doesn't work well for me nor for anyone else. I just answered a question about what the alternative was to both mere colour and stat bonuses.Depends on the game and your preference. What you're describing works well for you. It doesn't work well for others.
It is still mechanical modelling
It's not a model of anything. It's a modification to a die roll to reflect the fictional situation.Er, that IS mechanical modeling. Advantage is a mechanic and he's using it to model racial abilities. It's just not formalized is all.
I guess the point would be that fantasy "species", or peoples, ultimately occupy the same role as different human cultures. They involve affinities, and ways of seeing the world, and ways of being seen by others.logically the exact same thing would apply even if we were just talking about human cultures, so none of this communicates "different species."
And those things seems to be core to the Half-Elf in any event.