I think if prostitution and drugs and those things, are legalized, then they will be very generally used, like by 25 - 75 percent of the people or something. Drug use is now still much a shady business run by shady people, but after legalization well lawyered corporations will take over, which would result in general usage. Sure one might resist 1 time if legalized, but in a lifetime you would be faced with the choice a couple of thousand times through advertising and people you know. It would become a significant drag to resist. So that's why I prefer not to have those things legalized. There is a slippery slope towards more legalization once you start with legalizing, and a slippery slope of using the drug as a psychological addiction to escape problems in stead of just recreation.
regards,
Mohammad Nor Syamsu