I dont think that would stop it because there are always new people gettinf addicted.

Personally I think the best way is legalising it and deregulating to the point its cheaper than prohibited heroin. Have it bought through pharmacies.

I think there would be a drop in young users and hopefully you could stamp it out. It would probably become something like tobacco.

Of course thats a super risky policy so nobody would give it a go.