The primary reason is taxes
After replacing the cotton, you can blow (do not inhale) and it will appear to emit 'smoke' from the prop
Tobacco use in Alabama 2021 Cigarette use: Alabama* Cigarette smoking rates in Alabama In 2020, 18.5% of adults smoked

Specific stakeholders Procurement and category managers at retail chains & convenience stores (e.g., 7-Eleven, Walgreens, Tesco) Supply chain managers at tobacco distribution hubs (e.g., ITC distribution network, Altria logistics partners) Regulatory compliance officers in health ministries (e.g., FDA U.S., Ministry of Health & Family Welfare India, Public Health England) Product managers and R&D leads at smokeless tobacco product OEMs (e.g., chewing tobacco, snus, dissolvable tobacco, snuff) Marketing and brand managers at leading tobacco companies (e.g., oral nicotine pouch brands, heritage smokeless brands) Retail kiosk operators and small store owners in smokeless tobaccodominant regions (South Asia, Africa, Scandinavia, U.S.) Agricultural cooperatives and farmers producing tobacco leaf (India, Bangladesh, Brazil, Zimbabwe, U.S.) Databases World Health Organization (WHO) Global Tobacco Surveillance System World Trade Organization (WTO) Trade Statistics UN Comtrade Database U.S