China has the world's largest smoking population, with about a quarter of the population smoking, and 740 million non-smokers are exposed to second-hand smoke. However, on the one hand, individual smokers are physically and mentally dependent on tobacco, and on the other hand, national tax revenue is partly dependent on the tobacco industry. If tobacco were eliminated at once, not only smokers would experience withdrawal symptoms, but so would the economic situation at all levels of the country. 
The current implementation of a comprehensive ban on smoking is difficult to implement, high cost, difficult to achieve the desired policy results
 tobacco control in China can only be a gradual process.