Chaosmancer
Legend
An observation from actual play. I felt that my players completely underestimated a villain because he happened to be a kobold. It had no real mechanical effect, but the players still treated a character they knew was a wizard as if he would be a pushover.
Conclusion: players, not just NPCs, can make judgements based on racial stereotypes.
Oh yeah, people will make all sort of assumptions based on early tropes, and not realize how poorly those apply at high levels.