What percentage of people are not aware of the health risks when they start using drugs?
What percentage of yeshiva bochrim are doing pot on a regular basis and think its harmless. What percentage of yeshiva bochrim are gambling (legally and illegally) and know its bad for them in the long run?
There is a dearth of education on addiction in our community. On the parental level, the yeshiva/girl school level and on the level of the children themselves.
e.g. Telling a kid that a cardplayer is posul l'eidus will not stop him. Taking him to jail to visit an incarcerated compulsive gambler, may. We need to get a bit more graphic. Make it real. It's not a theoretical shtikel R' Chaim.