It should know if we are elves, half elves, or drow so it knows not to try sleep spells against us. I'd say yes, if we have the info, they should have it.
I would say not allways. I dunno how commonly known is this Elvish feature in forgoten realms, especialy between less educated species ... aka goblins.
Drows should know better for sure, aswell as Duegars, since they probably encountered enough Drows to know ...
Certainly they should notice that spell dont do anything to us. When i fighted goblin camp, one goblin tried 3 turns in a row to put me to sleep. :-/
I still dont understand why cant we change Race for our hirelings. Lets us play Githyanki as racist as they trully are!
