With that logic we should give everyone a nuclear bomb and teach them not to press the button. Let's see how that works out.
Big tegh companies spend billions on ways to influence your behaviour, making it even difficult for adults to not fall for their traps, let alone kids with still very much underdeveloped brains. Just look at all the stupid things you had done when you were a kid.
What worked for me was to stop seeing friends that smoked and to go for a run every time I felt like getting a cigarette, instead of getting the cigarette.