Addictions are not curable imo, there is always that threat of failure. I suppose it's down to the person that's been addicted. I have some friends for instance who used Drugs, quit them for a long time only to go back to them, it's the same as smoking with some stopping then going back to them. I myself the other week started fancying a Roll-Up after 4 years. It affects different people different ways and i think it comes down to a lot of willpower. My Sister and her Husband both quit smoking without any aids like Vaping which shocked me at the time as they were quite heavy smokers, i think my 2 Nieces always at them to stop will most likely to have helped. With me, something drastic has to happen before i take action. It was Heart Failure that opened my eyes to smoking, the same with Drinking, i always have to take things to access. I thought nothing of polishing a bottle of Vodka off along with half a dozen beers. I always thought Toothache was the worst pain a person could have until i got Pancreatitis which let me tell you is excruciating pain which i never want to suffer again. So vaping to stay off smoking for me will be a lifelong thing. I thought i could stop the Nicotine but it was either Vaping or Smoking so stuck with Vaping. I know people are not the same and we all are different. If someone Falls off the Wagon while quitting Smoking, Drinking or anything else, never criticise them as we all know being Ex Smokers it isn't that easy and the addiction you thought gone is still there lurking.