Sometimes Even Non-Alcoholics Need to Stop
Alcohol was never part of my extended family's thing--as an adult, my guess is that it's because at least three out of my four grandparents had an alcoholic somewhere in their lives. By the time I graduated from high school, I'd lost one friend who was killed by a drunk driver, very nearly lost another as a result of his own drinking, and had a teacher try to force me (as in, have other students pick me up and drag me) to go to a bar against my will. So for me, far from learning alcohol=fun, I learned that alcohol = coercion, destroyed relationships, and death. And it still seems that way to me today.
Some time after college, I had a housemate who went with me to a music thing that happened at a bar; I've never had a driver's license, so she was driving and therefore couldn't drink. Afterwards, her observation was, "I never realized you could have fun without alcohol."
I'm with Helena in this story--people who drink tell me the same thing the author says about the purpose of drinking--and I can say that I don't like being with anyone who's drinking for exactly the same reason the author comes to realize after stopping.
Of course, if it's a loved one, there's also the added discomfort of seeing a loved one guzzling neurotoxins that will start causing the cells in their brain to wink out forever within seconds of swallowing. I kind of don't like watching people I care for poison themselves.