"People whose youth did not coincide with the twenties never had our reverence for strong drink. Older men knew liquor before it became the symbol of a sacred cause. Kids who began drinking after 1933 take it as a matter of course. ... Drinking, we proved to ourselves our freedom as individuals and flouted Congress. We conformed to a popular type of dissent -- dissent from a minority. It was the only period during which a fellow could be smug and slopped concurrently." [A.J. Liebling, "Between Meals," 1959]
Prohibit (v.) is first recorded 1432. Prohibitive "having the quality of prohibiting" is recorded from 1602; of prices, rates, etc., "so high as to prevent use," it is from 1886.