Antibiotics save countless lives, but can also cause significant harm including antibiotic-associated adverse events, Clostridium difficile (also known as Clostridioides difficile) infections, increasing antibiotic resistance, and changes to the microbiome (the implications of changes to the microbiome are only beginning to be understood).1 Antibiotic stewardship programs have become increasingly commonplace in hospitals in the United States and around the world, but these programs almost always rely heavily on restrictive practices (eg, requiring approval before prescribing certain antibiotics) or persuasive practices (eg, discussions with clinicians regarding the continued need for antibiotics).2 Although these approaches have had success in improving antibiotic use,2 they depend on external motivators, and their ability to influence how clinicians will prescribe antibiotics in the absence of an antibiotic stewardship program–driven intervention is questionable.