The main reason why cats are placed in cages is to protect their safety and health. A cage can prevent cats from running out of the house or into dangerous places, and can help cats adapt to their new environment. In addition, placing a cage in a cage can also help with training and socialization of cats. Cats can learn how to use the toilet, how to get along with people, etc. in the cage. At the same time, being placed in a cage can also help cats establish a good relationship with people, because they can see people in the cage and gradually become accustomed to human presence.
However, it should be noted that putting cats in a cage does not mean that they cannot go out and move around. In order to provide cats with enough space for activities, it is recommended to put some toys and game props in the cage and take them out for activities regularly. At the same time, it is also important to note that the size of the cage should be suitable for the cat and should not be too small or too large, so as not to affect the cat's quality of life.