Object play is a natural behavior for cats. It helps them to develop their hunting skills and to explore their environment.
There are many reasons why cats knock things over, including boredom, curiosity, and a need for attention.
Cats who are bored may knock things over as a way to entertain themselves.
Cats are naturally curious creatures. They may knock things over to investigate what is underneath or to see how it works.
Cats may knock things over to get their owner's attention.
Some cats have a strong prey drive. They may knock things over in an attempt to catch the object.