What concerns me about legalization at the moment, is it is being promoted as cool rather then a way to help addicts.
I think legalization should be accompanied by the anti-smoking campaigns that targeted the tobacco industry. It is amazing the reduction in the number of people who smoke tobacco as a result of those campaigns and it did not require creiminalization.
I totally agree with your concerns - the reason why I used somewhat grim images in this article instead of happy ones, is because I didn't want to make an impression that I'm supporting drugs and prostitution just because that's now cool and mainstream.
Of course, I think that some of the income from new taxes should be used to promote limited and responsible drugs (including tobacco and alcohol) and prostitution usage.