It is said that it is much needed to prohibit smoking in public places. I completely agree upon this as it is essential nowadays to ban smoking on the places.
First of all, on public places there are people of all ages. Old people and children might not bear smoke and smell coming from cigarettes. Moreover, it could affect health of old age people. For example, if someone is smoking in public and someone old or children passes by them, Then they are prone to cough by the smell and smoke. It can do long term harm on their health.
Secondly, It is also harmful for people with lung disease. In public places, like hotels or parks people with lung diseases might also be present. For example, people who have asthama cannot bear any kind of smoke. And it can make them suffer from short of breath. So, if someone is smoking in public it could do harmful effect on them. This is how it can lead to harms to many people.
To conclude, I would say that it is too harmful to smoke in areas which are full of people. So, it is necessary to prohibit smoking in public areas as it is harmful for children, old age people and people with lung diseases.