Why Aren't Alcoholic Beverages Packaged in Plastic Bottles?

Practically every beverage available these days comes in a plastic bottle, milk to soda to water. Except booze.

Wherever I travel there seems to be an epidemic of broken beer and liquor bottles on every path and beside every road. Since the contents of these glass containers is often what induces the anti-social behavior promoting the breakage and since the glass is often used as a weapon, why aren’t alcoholic beverages packaged in plastic?