Definitely a question worth asking.
I see two big problems a psychedelic business must keep in sight:
1 - A Psychedelic trip is extremely hard to manipulate without ruining the experience;
2 - It's practically impossible to anticipate the effects of a psychedelic trip;
How do you even start to define a professional protocol to determine who is prepared for a psychedelic trip?
Beyond that, a mystical journey can leave the psychonaut vulnerable in many ways, how do we guarantee proper conduct in this context?