I am all for cannabis legalisation, and have fought for it for years,even though I don't like to consume it (only makes me sick..)
BUT: I have been a medic on the Oktoberfest for a decade and while these times are long gone, I absolutely support the ban there.
Here's why: First Alcohol and THC do not mix well. At all. In more than 20 years of emergency medicine I saw two THC overdoses - which were easy to handle. But high dose alcohol AND THC is a massive problem and will lead to people getting admitted to ICU for monitoring purpose as it is beyond what the (very advanced) medical services at the Oktoberfest can handle themselves. And ICU beds are in absolute short supply. So while alcohol is a problem and I wish the local government would put more pressure on the waiters to force them to refuse to deliver "the final Maß"(last beer) that pushes people over the edge, my former colleagues can easily handle that. But mixed-agent intoxication is a totally different beast. Don't get me wrong, Alcohol will be the main nox in these cases - but the combination is the problem.
Furthermore the Oktoberfest is crowded as hell. And there is literally zero chance that one is able to smoke without interfering with someone else - staff, other visitors, etc. And just like nicotine letting someone else co-consume without asking them for approval is inconsiderate as fuck - especially as there are drugs that do not mix well with THC, even more so even alcohol comes into play.
As someone who is doing disaster response consulting for healthcare and public health: I fucking love you guys. You make my job sooo much easier.
Seriously.
The surveillance you folks do is pretty much indisputable and far more incorruptible compared to everything else we do, in healthcare especially.
Very often you are my "discussion ending gun" when decision makers endlessly want me to prove their (flawed) point of view. A "nope, here are validated wastewater based numbers, you are wrong" is extremely satisfying sometimes.
Thanks folks!