There are a few reasons why cats have toe beans. The first reason is that they help cats grip when they are climbing. Cats use their claws for traction when climbing, and the toe beans help them get a good grip. The second reason is that they help protect the cat's toes from injury. When a cat scratches something, the toe beans act as cushions to absorb some of the impact and prevent the claws from being damaged. Finally, toe beans may also play a role in helping cats balance. By having extra weight at the tips of their toes, it helps them keep their balance while they are walking or running.