I'm happy to let the retarded engage in a secret underground of cigarettes.
Which cartel do you work for, exactly? Because I see an outright ban on tobacco going about the same as the ban on marijuana, heroine, crack, cocaine, etc etc. I assume the reason you want to see it banned is that you plan on making insane money on its illegal sale and manufacture. How many people actually start smoking at the age of 18 or later? I'd be willing to bet its a smaller fraction than the number of people who start smoking in high school. And it's not always a matter of intelligence or education. I know people who work in pulmonary critical care (doctors) who smoke. They know all the risks you do, and more. They also know they will die regardless of their decision to smoke, and they enjoy doing it for one reason or another.
I'm all for reasonable restrictions on smoking. I really dislike smokey bars, restaurants, and offices. I also dislike when someone smokes outside of my open residential window. But outright prohibition has never worked, and will never work. It just raises the "cool factor" because you're a rebel if you flout the law.