Keeping monkeys as pets is generally considered unethical for several reasons. Monkeys are wild animals that have complex social, physical, and psychological needs that are difficult to meet in a home environment. They can become stressed, aggressive, and depressed when kept as pets, as they require large amounts of space, social interaction with other monkeys, and specialized care. Additionally, the exotic pet trade often involves capturing animals from the wild, which can be detrimental to wild populations. Overall, it is recommended to support ethical and responsible conservation efforts to protect monkeys in their natural habitats rather than keeping them as pets.