It kills to smoke. Tobacco is gross and smelly. Quit before you start. Make it YOUR decision. The moment someone stops using tobacco, their body begins to heal itself.
Someone can only win by quitting.
People who smoke may want to quit, but find it very hard to do. Nicotine is one of the many harmful chemicals found in tobacco that makes it tough to quit smoking. It's called addiction. Nicotine addiction is very powerful, and is hard to fight off. It's still possible to win against nicotine in tobacco products, if you team up with others to avoid it.