I’m sorry, but no. Like other addictions, it’s just not possible for people to use willpower most of the time. Addicts need help to quit. Doing it for someone else simply isn’t a strong enough motivation. They have to want it for their own reasons. you can educate them & help them get over their embarrassment for getting help. But then it’s up to them. Don’t get guilted into staying if it’s a deal- breaker.