When I purchase vaping supplies online the retailer verifies my age for each and every purchase so there are already controls in place. It seems that adults forget what it is like to be a teenager, they think that they can stop teens from vaping, drinking etc if they create enough barriers. But that doesn't work, if a teenager wants to do something they will find a way to do it, by having an adult purchase the items or by buying black market products. The key to reducing teen vaping, drinking, drug use etc. is education. When I replaced vaping with smoking my teenage son told me that vaping was just as bad for me as smoking, that was what he had been taught in school and although I do not believe that to be true I did not disagree with him.