OUR VIEW: Volusia, Flagler, state, federal trends agree: Teen vaping is a growing threat How Old Do You Have to Be to Vape By State? The Hemp Doctor New Study: Parent Knowledge of the U.S. Tobacco 21 Law Do you know the legal age to purchase tobacco in the U.S.? It turns out many parents don't. In a survey How Old Do You Have to Be to Vape? Vaping360 Selectmen in favor of raising e cig purchasing age E Cigarette Use Among Youth Smoking and Tobacco Use CDC