Here is wisdom: Have a kid? Get a dog. Want a kid? Get a dog. Don’t want a dog? Get a cat, which is like training wheels for dog ownership.
I can make the practical case. Dogs make good guards, particularly of young children (though this varies by breed; Dachshunds, for instance, are tubular snapping turtles). They are fun to look at and can be entertaining companions. Children raised in households with dogs are less likely to get various immune system–related ailments, such as eczema or asthma.
Hitler famously proclaimed, “When an opponent declares, ‘I will not come over to your side,’ I calmly say, ‘Your child belongs to us already. . . . What are you? You will pass on. Your descendants, however, now stand in the new camp. In a short time they will know nothing else but this new community.’”