You can always to what new zeland did, and ban them for people born after year X (2008 in NZ) https://www.bbc.com/news/world-asia-59589775 https://www.bbc.com/

You can always to what new zeland did, and ban them for people born after year X (2008 in NZ) https://www.bbc.com/news/world-asia-59589775 https://www.bbc.com/news/world-asia-59589775 Yes, yes, black market and all that, but that's true for vapes too. And drugs.