How Old Do You Have to Be to Vape? Complete Guide Advertising vapes to children would bring hefty fine under proposal passed by SC Senate SC Daily Gazette FDA warns stores to stop selling fruity disposable e cigarettes PBS News Missouri vape bill passes legislative process Chinese Vape A mom says her 17 year old had no problem buying vapes from an area shop and has the credit card charges to prove it. After she and her son agreed to speak with us, we launched our own investigation.