> I was considered traveling from San Francisco to Oregon or Colorado (?) where I think psychedelic mushrooms were legalized and you don't need to "know people" to get them.

They're not legalized anywhere in the US. Oregon legalized them for supervised mental health treatment, which is still a far cry from the kind of legalization you're envisioning.

It's basically just decriminalized in a handful of states. Which doesn't mean you're finding shrooms on the shelves of smoke shops and dispensaries next to the whippets cartridges.