There is a form on the site
Smith said that in 1995 one in three California stores illegally sold tobacco products to minors under age 18

They are: revising the County of Los Angeles definition of tobacco products to include: e-cigarettes, specifying that their components, parts, and accessories also qualify as tobacco products, and clarifying the exemption for products approved by the FDA for medical use (e.g., nicotine patches and other nicotine cessation products) prohibiting the sale of menthol-flavored cigarettes prohibiting the sale of flavored non-cigarette tobacco products requiring minimum pack size for cigarillos and little cigars prohibiting new tobacco retailers near sensitive youth areas (e.g., schools, parks, libraries) prohibiting new tobacco retailers from locating within certain proximity of other tobacco retailers prohibiting establishment of new Significant Tobacco Retailers (i.e., any tobacco retailer for which the principal or core business is selling tobacco products, tobacco paraphernalia, or both) limiting or capping the number of retailers that can sell tobacco products regulating the sale of tobacco paraphernalia, and prohibiting sale of tobacco products in pharmacies

Solely for aesthetics and personal preference
Well, turns out it's not just a personal choice to use such imagery but, there's a deep psychological meaning to it as well