"It's amazing how many college boys don't drink or smoke. I seemed to know them all."
Removal of liquor during Prohibition - Credit: unknown
Here we have an excellent example of the narrator's terse, witty, sarcastic style.
Whilst college life in Britain and America is rarely associated these days with abstinence from alcohol, there is a long history of temperance and teetotaler movements in American society.
The opposition to alcohol in society reached its peak during the period known as the Prohibition (1920-1933) when the manufacture, sale, and transportation of alcohol for consumption was banned at a national level throughout the U.S.A.