They help with the behavioral component the hand-to-mouth habit, the inhale ritual
The Food and Drug Administration only gained authority over the tobacco industry in 2009 with the Family Smoking Prevention and Tobacco Control Act
So, standardizing the number of cigarettes in a single packaging box will help you streamline your packaging and shipping and reduce the chances of errors
How Tobacco Smoke Causes Disease: The Biology and Behavioral Basis for Smoking-Attributable Disease: A Report of the Surgeon General (Centers for Disease Control and Prevention, National Center for Chronic Disease Prevention and Health Promotion, Office on Smoking and Health, 2010)
Cannabis use can hamper brain development, contribute to anxiety and depression, cause fetal growth restriction in pregnant women, and make driving substantially more dangerous