I assume people must vary in how strong an addiction can be as I have smoked cigarettes but have not become addicted to them. I am able to abruptly stop, get mild cravings and be able to ignore them for a few days and the cravings completely subside. I have another friend who did similar. A regular smoker for years who switched between a few alternatives such as pipe, then vape, then just stopped completely and doesn't miss it. Another friend is still smoking into his 40's and is having a hard time stopping. He cut back but still smokes daily.