I mean, if heroin was the same price for an equivalent dose, wouldn't people use that? I know (many? most?) addicts prefer fentanyl, but that's because it's cheaper for a better high. It's much more effective at a much smaller dose, so a kg of fentanyl smuggled in goes much further than a kg of heroin.

But I don't think people actually prefer the sensation of the high, right? Like, you can do enough heroin for an equivalent sensation, you just have to do a lot more of it.

So it sets up this situation where fentanyl is the easiest to smuggle in 1 billion doses, so it's the cheapest, so people prefer it, but it's actually way more dangerous because the difference between a dose that feels nice and a dose that kills you is too small to measure for most people.

Yeah, maybe don't make fentanyl legal, but make heroin legal and make it price competitive with fentanyl

edit: and really, isn't fentanyl like $10 / dose on the street? I'm pretty sure heroin could be produced for a fraction of that if it was done legally. Sell it for $5 for an equivalent dose, people will make the switch