There are a large number of studies that show that children who live in a home with parents who drink, who smoke, or who have other "habits" end up doing the same things, statistically speaking. Furthermore, many of those studies indicate that children from those homes tend to have a far higher likelihood of becoming alcohol addicts.
The person to whom I responded seemed to indicate that these scientific studies are just "fear tactics." Furthermore, the impression comes across that the person she quoted needs to "educate herself" on how harmless alcohol really is.
Anyone who has lived with an alcohol addict would not say such a thing. Anyone whose family member or friend has died or been injured by a drunk driver would not say that.
Alcohol, even notwithstanding its potential detrimental effects on the body (one of which I have already mentioned) is far from harmless if someone becomes addicted to it. In a home where it's readily available and an openly accepted "part of life," the likelihood of a child becoming an alcohol addict are increased.
A parent who feels extremely strongly about their child becoming an alcohol addict isn't ignorant. In fact, they're probably over-educated on the hard realities of what alcohol can do.
I'm not worried about it. And if you want to make a case that parents should never drink alcohol lest they influence their children, that's a different thread. We are talking specifically about nursing mothers here.