Throughout my childhood and adolescence, my mother had a gin and tonic every evening and my father a whisky and dry ginger (or three). I never saw them drunk, except once when my father was legless at my cousin's wedding. Goodness knows what it took to get him drunk.
My mother has lived to 98 with no illnesses or any kind of ill health. She doesn't drink G&T any more, unless my sister or I are there.
Anyway, I now live in a wine-producing area where €4 is considered a lot for a glass of wine. A "glass" of wine is .25 litres. At fairs and fests, it is usual to drink wine by the half-litre. In rougher taverns if you order a quarter, you will be told to come back when you're thirsty!
Having said that, I no longer enjoy alcohol because I get headaches from it, but I often forget and have a G&T or a glass of wine.
That way, we get through about a bottle of red and a bottle of white a week. That includes wine used in cooking, but not drunk with meals out. (You don't "go out for a drink" round these parts - something I miss badly.)
Prompted by ideas found here on Gransnet, I am looking forward to retirement/unemployment, which I am due for very soon, and knocking off at 6 pm and sharing a glass with DH. It won't always be wine, though.