I see the complete demise of an American icon the local tavern or perhaps, the beginning of a new cottage industry, the professional designated driver?
Excuses me, I meant Canadian icon. Forgot which country I lived in for a minuet. Same will be true in US before long.
"perhaps, the beginning of a new cottage industry, the professional designated driver?"
What a cool, new concept! Maybe give him a cool designation, like "taxi" driver! ;)
Maybe local pub owners (out of a sense of self-preservation) could create what the WWII French Army called "de-ethalyzation rooms", where patrons could lock themselves in, but would have to blow a certain BAC, and pass a hand-eye coordination test, to get out.