Because of their size, guinea pigs are much easier to care for than dogs and cats. Therefore, they are perfect pets for families with small children and can be ideal companions if you live in a restricted apartment. However, although they require less work than other types of pets, this doesn’t mean that owning guinea pigs won’t also require the purchase of purpose-full accessories. What are these accessories? For one thing, you’ll need to buy a cage large enough for at least two rodents. Why two? Companionship. Guinea pigs are social animals that can become depressed if they don’t have a mate.