In the United Kingdom, a study involving 2,836 adolescents found that people who used e-cigarettes were four times more likely to have started smoking 12 months later[4]
21 (the latest data available), the Centers for Disease Control and Prevention reports that there have been 2,711 cases of people who've been hospitalized with EVALI, or e-cigarette, or vaping, product use-associated lung injury
Hammond D, Fong GT, McDonald PW, Brown KS, Cameron R: Graphic Canadian cigarette warning labels and adverse outcomes: evidence from Canadian smokers
"This collection dealing with the economic 'fallout' of a nonsmoking society provides a solid scientific basis for understanding just what would be the costs, benefits, and consequences if all the hard-fought interventions against smoking succeeded