As far as danger, I think that, as with many things, it's about maturity, education and harm reduction.
I had a single bad experience with mushrooms, and it put me off ever taking them again. I was too young and immature (something like 15/16), and took about 5x more than I'd ever taken before. I can see now that it was obviously very stupid. If I'd been in a different location at the time, god only knows what could have happened to me - I'd say that, if abused, mushrooms can be far, far more dangerous than driving a car.
But - if the science backs it up, psylocilin could do amazing things for those with depression. And furthermore, sensible people can have amazing experiences. So as long as education and harm reduction is in place, I'm all for it.
Did you have a point to make?
Because generally speaking, unless something is concretely documented as dangerous we don't just assume it is dangerous "because". Especially when that "because" is because of a well-documented, decades-long propaganda campaign by the federal government.