Are you for real? Everything you say here is exactly why there is such a major gap between government/parental messaging about marijuana and our teenagers meaningful consumption of those messages... Check this:
1) Your prohibition argument is ad nauseum in 2017. Weed was always easier for me and my friends to get in high school than alcohol. For some pot, we just needed to go to our high school dealer after classes with $10 to split a joint between 6 people. For alcohol, we needed someone to have a great fake ID and at least $12 each for a 6 pack. "Prohibition" is a joke.
2) There is federal education. It just absolutely fails to reach teens (the whole point of the article...)
3) Ok, lets look at the UK, which has the highest rate of cocaine use among youth globally. Is the strong message you want to send "do coke, not weed"? The UK leads Europe in youth drug rates... Including the Netherlands and Portugal where marijuana is not illegal.

How ironic you tell everyone to 'go read'...