Should 20 year olds be allowed to smoke? Why Hawaii says no CS Monitor Tobacco 21 Just a reminder, the minimum age to buy nicotine products in Indiana is 21. This means retailers are prohibited from selling cigarettes, e liquids, and e cigarettes to anyone under age 21. We Just a reminder, the minimum age to buy nicotine products in Indiana is 21. This means retailers are prohibited from selling cigarettes, e liquids, and e cigarettes to anyone under age 21. We NC lawmakers debate raising tobacco purchase age to 21 amid vaping crisis Help : r uscg