I drink wine most nights. I have had a drink most nights since 1995.
For the last 20 years or so, I have had a bottle of wine, give or take a glass or two, most nights of the week.
I am not saying this is healthy - but I am saying that the effect of drinking is different for different people.
Some people will be on the 'slippery slope' from their very first taste of alcohol. Others won't be physically addicted on huge amounts of alcohol. Most of us are somewhere within the scale. If you have blood family relatives who are full blown alcoholics, then you are at greater risk.
I am definitely not saying my level of drinking is healthy. I am definitely not recommending anyone else drinks like I do. I am saying that I am not at risk of the slippery slope - 20+ years and I haven't 'slipped' further. I am also healthier than average for my age (probably healthier if I didn't drink (so much) but not unhealthy).
It irritates me when people say 'this happened to me (my friend/relative) so it will happen to you' - NOT TRUE.
Look at some of the alcoholic questionnaires. These predict far more accurately if you, as an individual, have a problem. (affects on living, family, friends, job) (situation - time you want a drink, can you choose not to drink) etc etc.
I drink most nights, last night I went out for a meal with friends. At 6.30pm I had a glass of wine. I was driving, so for the rest of the night I had soft drinks. I drove home at 10pm with no worries. One drink didn't mean I coulddn't stop. Other people drinking didn't worry me.
I do think I am an alcoholic by some definitions. I also know that I am not physically addicted to the point I can't function without it, psychologically I know I don't want to not drink.
I'm retired, I live alone and, if drinking is shortening my life, I don't care.
These things won't be the same for you. Only you can decide. If you are worried about the amount you drink, then it is time to change. Do it because you want to. Don't do it because some random on MN has a friend or relative who concerns them.
Even full blown alcoholism is your own decision - but YOUR decision should take account of the people that matter to you.