San Francisco's e-cigarette sales ban is an unprecedented health experiment
https://edition-m.cnn.com/2019/06/26/health/e-cigarette-ban-san-francisco-health-experiment/index.html?r=https%3A%2F%2Fedition.cnn.com%2F
If e-cigarette sales ban is enforced in San Francisco, e-cigarette smokers will shift to conventional smoking cigarettes.
It is meaningless for promoting health.
What San Francisco City should do is to think about how to persuade them to stop smoking cigarettes, and about how to protect non-smokers from motivation to smoke.
