One in three adults in the UK have taken them, as have the last three US presidents, so it's time to remove the stigma around drugs, and talk openly towards more effective, safer policy.
OK, I'm in the minority that has never experimented with recreational chemicals and my Puritan upbringing (really!) means that I don't really want, nor would I be thrilled to find out my daughter was a crackhead.
But the reality of it is that people will do drugs, no matter how many earnest Daily Mail campaigns there are to crack down on drugs. By decriminalising drugs and taxing them for their external costs to the rest of the world, we can make it safer and cheaper for everyone.
Imagine: instead of spending millions on pointless drug busts, we instead take millions, probably billions in tax which could fund rehabilitation programs for people who want to get off drugs or free drugs for people who are addicted but can't afford them (so they wouldn't be mugging or stealing to fund their habit) and possibly fund some kind of "free" insurance for people who are victims of drug-related whatever. Drugs could also be made to consistent standards, which would alleviate the problems of people killing themselves from ingesting whatever they cut the drugs with.
I'm sure I'm being idealistic here, and I am equally sure that in reality, not all the problems would go away, but I am certain that, as in Portugal's case, things would get better and not worse:
[R]ight-wing groups predicted disaster when the laws were liberalised, and this simply did not happen. Drug use in many categories decreased, and while it increased in some areas (notably cannabis), these increases were far too small to offset the overall trend, which has been downwards. Heroin was a major problem, along with the transmission of HIV through dirty needles, but the rates of both heroin use and HIV infection in drug users have decreased.