I know that this has been done to death more than once, but my question is the opposite of most of the rest.
Is it logical that a creature several sizes larger really has an easy time grappling the smaller creature?
In RAW, it would appear that an average human grappling a house fly is as easy as hitting the broad side of a barn with a rock at point blank range.
Really?!?
By any reasonable definition of the house fly's stats, it has a CMD of about 0.
edited to add: In the earlier editions of the game, it was necessary to hit with a touch attack as a precursor to a grapple. Can we get an official ruling?