About 15 or 20 years ago, California printed an official agricultural booklet telling how important agriculture was to the state. One of the tables, gave crops in order of their economic importance to the state. That's right, marijuana was No.1, but the author was too honest, booklet was recalled (few actually got out) and "corrected." Likewise, back when I was young, perhaps still true, the Queen of England did not want (and it did not happen) that part of her state allowance came from the hard-working / men-pleasing girls (and others) of the night. Anyone know if English prostitutes are taxed on their earnings now? California could probably end legislative gridlock, balance its budget, pay its teachers and cops etc. by following your suggestion (and cut into organized crime) - but you cannot expect politicians to offend their religious right wing supporters, so they will not.