What drug is commonly known as the drug of choice for many populations due to its accessibility and low cost?

Ethanol is commonly known as the drug of choice for many populations primarily due to its widespread accessibility and low cost. It is legal in most places around the world for adults and can be easily obtained from various sources, including supermarkets, liquor stores, and bars. This legal status greatly contributes to its prevalence as a substance of choice for recreational use.

In contrast, other substances on the list, such as cocaine, marijuana, and LSD, either face legal restrictions or are not as readily accessible or affordable. Cocaine is illegal in many jurisdictions and has significant social and legal repercussions associated with its use. Marijuana's legality varies by location but, where it is legal, it may still not be as universally accessible or inexpensive as ethanol. LSD typically requires a more specialized distribution network, making it less accessible compared to ethanol. Thus, ethanol stands out as a commonly available substance for many populations.