Why do you think smoking/cigarettes has not been made illegal despite it being harmful to health?

It was difficult for me to comprehend why many people justify cigarette consumption from the regulatory perspective. I believe smoking could be illegal from the following view. First, it is less detrimental to health than other means. Both drugs and smoking have the same level of addiction. Also, if people consume too much nicotine in the long term, many experts say they could be exposed to cognitive function problems. However, research from many institutes indicates that people are much more exposed to such challenges when consuming the drug. Therefore, smoking could be a less severe form. Secondly, it could come from its’ popularity and prominent figure. People have been smoking long-term, and consuming tobacco has been portrayed as chic in many media. Also, many organizations for a cigarette are ready for lobbying by emphasizing their innovative technology. These reasons make smoking illegal even with negative health implications.