I tend to root for “lost causes”. I like it when the weak are strong, life’s losers finally win and the outcasts find a home. It just seems right.
This is a story about such a cause. Scrawny Cat used to have a home and someone to love him. But those days are gone. Everyone calls him, “Get out of here”. Thus, it’s a story about loneliness; and who hasn’t been there?
The predictable resolution for this story still pays off, even though you can see it coming from a mile away. I like well written (not trite) happy endings: even if there aren’t as many of these in real life as there are in children’s books.
It’s not overtly mentioned in the story, but scrawny cat totally works as a metaphor for the homeless. So I like it on that level too.