[JustSayNoToNannies]

The guy's premise is that it is prohibitively expensive to enforce existing drug laws.. so he proposes a new law that identifies a series of new laws associated with it - 6 that he spells out in the article; 3 of which are utterly unenforceable (age restrictions,

Age restrictions on the legal mind-altering drug alcohol have not proved "utterly unenforceable" - in fact, young people report that they can get marijuana more easily than beer or cigarettes. And I've seen no evidence that enforcing the regulations on alcohol is expensive.

[alancarp]

If you can have plants growing in your own home, then yes: age restrictions on use are most assuredly unenforceable.