Birthdays call for a celebration. The birthday person being covered with the cake mask is as common as the birthday being a celebration.
The thing about birthdays is that friends join in to create new memories for the moments to last long and the wishes to stay strong.
The convention of photos were to do the same. The do for this picture, let me tell you, was meant to capture the person with the cake mask and the other person trying to capture it.
And then the camera thinks, ‘Caught the two in two frames.’