The laws have turned it into something taboo and then people often start consuming psychedelics in a weird and suspicious way to begin with...because it's not legal potentially leading to more and more bad trips.
Meditation is similar, often seemed to be associated with guidance from someone who know how to do it and had experience dealing with some of the potential negatives associated with it. I just read a book by Mingyur Rinpoche and I ended up having a severe existential crisis, that book shocked my being to it's core at the time.
