Is having a dog better and more convenient than having a cat? While having a cat is less time consuming, having a dog can be more rewarding. For example, you do not have to go on a walk with your cat. Your cat will take care of itself. Dogs usually need to go on walks, unless you have a garden where they can spend their whole days. While some cats might require grooming, dogs are more likely to make you to look for some dog grooming, especially if your dog requires regular grooming. Keep in mind that some dogs do not require any grooming at all. They will just take care of themselves.