I can't find anything in the PHB that actually says that Monks are proficient with unarmed strikes by default. Their Proficiencies list just says simple weapons and shortswords. Their Martial Arts ability says it gives them "mastery of combat styles that use unarmed strike…" but not actually proficiency.
Am I missing something, or is it actually correct that Monks don't have their proficiency bonus with unarmed strike unless they get the proficiency from a feat or something?
Best Answer
Everyone is proficient with their own unarmed strikes
In the errata for the Player's Handbook, the Unarmed Strike entry was removed from the weapon table. However, the rules on Unarmed Strikes in the combat section now say that every character is proficient with unarmed strikes (emphasis added):