Denver just legalized them 3 months ago
Well, we both work at jobs where people can (and occasionally do) get killed or maimed, just in the day to day operations (even in peacetime, in yours). I have been Fire/EMS, driven dump trucks, operated heavy equipment, engaged in marine construction, been a geologist on oil rigs, roughnecked, done pipeline work, fitted structural steel, and done a variety of construction work, among other things in the last 47 years.
I can't honestly say I have ever seen people who could safely (relatively speaking) do those jobs while messed up, be that from alcohol or any other drug, including some OTC stuff. I would wager your experiences are similar, in that if your head isn't in the game, completely, things just might not go well.
I saw the signs along the interstate in Colorado: "Pull wrecked vehicles out of the roadway." I have never seen signs like that anywhere else.
That spoke volumes. First that there were enough wrecks along that corridor up the Front Range that the reminder was there in the first place (they had signs made up, just for that), and second, that people needed to be reminded that leaving their wrecked or damaged vehicle in lanes of traffic might not be such a good idea. (Duh).
But the tax revenue!