How Old Do You Have to Be to Vape? Complete Guide Is Vaping Legal in Florida? A new Alabama law that took effect June 1 came in response to what some called an epidemic the use of electronic cigarettes, or vapes, by children and teenagers. We've broken Texas targets vapes aimed at kids with new law, officials also considering further steps We're pounding the pavement to make a difference! It's illegal for anyone under 21 to buy e cigarettes, so where do young people get their vapes from? Mostly older friends and family members!