Can I Vape at 16? What is the Legal Age for Vaping in the UK? State Summary We Card How Old Do You Have To Be To Buy A Vape (Age Restrictions & State Laws) US raises legal age to buy cigarettes and vapes to 21 We regularly receive reports of retailers selling vapes to children, who are often enticed by the colourful packaging and sweet flavours used by some vaping manufacturers. The legal age to buy vapes Vape Age Laws: Minimum Age to Buy Vapes in the U.S. & Online