I'd much rather take an illegal drug than a legal, 'under the radar' one. The personal risks of possibly getting thrown in jail are vastly dwarfed by the risks of ingesting an untested and completely unknown substance. The sad thing is that even the illegal ones often involve a terrible externalized human cost. Illegal drugs are consumed at scale, exploiting the producers and transporters, legal ones are consumed individually, personalizing the risk.
I've nothing against the yearning to alter one's consciousness, however temporary it might be. But alcohol might be the only way to do it without assuming either great personal risk or great moral hazard. And alcohol can be so, well, boring. One of the great sadnesses of the world we live in.