One thing adults conceal about sex they also conceal about drugs: that it can cause great pleasure. That's what makes sex and drugs so dangerous. The desire for them can cloud one's judgement—which is especially frightening when the judgement being clouded is the already wretched judgement of a teenage kid.
Help create systems instead of goals, and show kids that they can keep exploring, finding linkages in hidden spaces. “Teach kids freedom, and that they have agency.”
For what it’s worth, in raising our own kids we created an effective, balanced, common-sense approach based not on rules but on three principles. Treat everyone with respect. Whatever you undertake, give it your best effort. You, and only you, are accountable for your actions.