Quote Originally Posted by The_Glyphstone View Post
Creatures are proficient with their natural weapons. Unarmed strikes are not natural weapons. Monks get an exception allowing their unarmed strikes to benefit from feats/spells as if they were natural weapons, but they still aren't actually natural weapons.
Psst, Creatures aren't proficient with their own natural attacks.
Certain creature types are if they have Racial HD.

Druids despite being humanoids are told they are proficient because they normally aren't. Most Druid Players have 0 Racial HD (so they had to make an exception).