This was done by the author so that the relation ship does not become a topic to be discussed by every one and remains private.
Step-by-step explanation:
The lottery is a story which has the theme and the message about examine the traditions of the society again by the people. This should be the prime focus if these traditions are outdated.
The story talks about not making any mindless adherence to the traditions of the society any more and to stand against these traditions and practices of the society if need be.