Cats are notoriously private creatures. They are also highly intelligent and require intellectual stimulation. Without a cat tree to provide a scratching area, places to play, and stimulation, your cat may grow bored.
Bored cats love to scratch up and destroy curtains, couches, and more.
Our home has experienced scratched up couches and shredded rugs as a result of a curious kitty that was left without a proper scratching post area.