So youth cigarette smoking (and youth tobacco use in general) was stubbornly high for several decades, such that 16% of youth smoking in the past month was the most optimistic possible scenario
If you are an adult smoker looking to replace cigarettes, here are some helpful things about cigarette alternatives
[16] Vapers compete by standing back-to-back when blowing the cloud of vapor
Carcinogens in cigarette smoke can directly mutate tumor suppressor genes and oncogenes, while cigarette smoke-induced inflammation creates a tumor-promoting microenvironment in the lungs
Size and sealing are the two major swing factors here (along with, of course, how cold it is out there), but to provide a rough ballpark, you generally want to have at least 3-4k BTU
Easily carry this in your purse or carry on bag and take it with you