Why was the story about cats so silly?it from the book to kill a mockingbird.

In Chapter 2, Miss Caroline tries to read the students a
cute story about some cats who are a lot like human beings.  They have long
conversations and they make clothes and they order food from a drugstore.  I think that
the kids do not like this story because it is too far from their actual life
experiences.

The clue to this is that Scout mentions the
kids' clothes and how they've been working since they were little during her discussion
of the story.  She is basically saying that these kids have tough lives and are not
really interested in this kind of cute story that has so little of a connection to
anything real.