Dog
Dogs respond to human input with remarkable fidelity. Training methodologies developed over centuries allow humans to shape canine behaviour through positive reinforcement protocols. A dog can be taught to sit, stay, fetch, and perform tasks ranging from guide work to bomb detection. The owner exercises meaningful agency over the relationship.
Acquisition of a dog requires intentional action: visiting breeders or shelters, completing adoption procedures, preparing living spaces. The decision to become a dog owner lies entirely within human control. One cannot accidentally acquire a Labrador retriever through forces beyond comprehension. The dog's presence in your life results from choices you made.
Luck
Luck, by philosophical definition, refers to outcomes beyond human control. The moment an outcome becomes controllable, it ceases to qualify as luck and becomes instead a consequence of skill, preparation, or effort. This creates a paradox: the pursuit of luck is, in essence, the pursuit of that which cannot be pursued.
Humans nonetheless attempt to influence luck through rituals lacking empirical support. Surveys indicate that 72 percent of people maintain at least one superstitious behaviour intended to attract good fortune. These efforts, studies suggest, achieve results no better than chance, which is rather the point.
VERDICT
Dogs exist within the domain of human agency. Luck exists precisely where agency ends. Those who prefer control over chaos will find dogs substantially more satisfying.