Dogs can be great for kids: Not only are they are a source of unconditional love, but they can help teach responsibility and cooperation. When choosing a dog for your family, consider your lifestyle and the ages of your children. Some breeds have infinite patience, others can play endlessly and still others are naturally protective of children. While most dogs thrive on training, you may have to do a bit of training with your kids as well to teach them how to interact with their new family companion.