Prohibition leads to black and grey markets, where what is produced and consumed is frequently even more corrupted and dangerous/risky in its acquisition and delivery than whatever you think of the corollaries in the lit markets. It may also drive more deviant and destructive behavior where they may hide their actions and produce more shame and be labeled criminals.
My only divergence would be that the education planning starts at each individual family level rather than large-scale massive education buracracy, which is what we have now and is failing badly to produce good results.
Maybe once that first order family circle is built strongly, you can begin to expand the circle of influence to extended family, neighbors, friends and community.