But they do, by fuck, they do.
If there were no speed limits here, our roads would be a Mad Max style death trap. Not only do we (in Oz) need limits but also a constant police presence to keep the more belligerent and foolhardy from simply ignoring those limits.
We have hardcore gun control here and our death rate from shootings is less than 10 a year. In the U.S. it's thousands per year.
Marijuana? If alcohol and tobacco is legal then it's a no brainer - marijuana should be legalised.
But let's face it; the vast majority of this deranged herd we call humanity needs some form of protection from itself.
I think regulation would be a better form of 'protection' than the current situation though.
Yes, a percentage of the populations does already. But you don't think there would be more people taking heroin for a test drive if it were sitting on the shelf next to the Coors Light?
I hear you, though. I agree that it's a waste to lock up the guy who minds his own business and sits in his living room and shoots up. But if that same guy later ends up in the county hospital because of his habit, then you're back to having a public interest - taking away money and resources from everyone else.
I just think there's too many ways that someone's drug use can affect the general public, directly or indirectly, so the government should at least attempt to mitigate the risk to some degree.
There's different forms of decriminalisation / legalisation though. You could have a system whereby (for example) registered heroin addicts who met certain criteria can get their fix at a clinic. This has been trialled in the UK and it met with success where some addicts were able to get and hold down jobs because their waking lives weren't devoted to finding enough money to get drugs then finding someone who had some drugs. They were then able to wean themselves off it far more effectively than by being given methadone (which is the widely prescribed 'cure' in the UK). Obviously it only works for people who are prepared to register etc. and who want to sort themselves out. Unfortunately it hasn't been extended because (as with so many other things) the political will for this sort of pragmatism doesn't exist due to the controversy it would cause (you can imagine the stupid scaremongering headlines).