Why do you think some people must smoke cigarettes?

I’m on month 3 of not smoking cigarettes . No one MUST smoke cigarettes , thats a bit insane to have that mindset . Everyone starts for different reasons . I feel like i became addicted on accident , it was originally a boost after weed , then it became a habit . I’d never recommend it to anyone . Avoid it at all cost . Also , it caused me to now have Multiple sclerosis. So IF you do smoke , quit now while you still have good health .