Have to agree with Technodup, and it seems the way the legislation is formulated is a cover all for just about anything we might use for a cheap thrill without examining the actual effects and side effects. A presumption to illegality, not a great thing in a liberal society.
Mike, I have one foot in London also, so can claim to be part of the lowest alcohol consumption data set.
However, the differences are not huge, and I know the rural drinker is unlike the urban drinker.
We tend to have a few at the end of a hard physical day, work, work, drink whereas the urban pattern is work, drink, drink.