Not saying you are wrong, because I wouldn’t know, But like, how are you able to tell that generally people would have difficulty moderating their use of somet

Not saying you are wrong, because I wouldn’t know, But like, how are you able to tell that generally people would have difficulty moderating their use of something shortly after they first begin to use it, generally tend to also have difficulty not beginning use? That seems like it would be hard to measure/observe ?