Nobody says, “Let’s meet up and talk for two hours.” We say, “Let’s grab a drink.”

The drink is the alibi. It gives the evening a shape, a reason to sit down and an excuse to stay. And it’s a curious alibi to lean on right now, because the WHO put global consumption in 2019 at 5.8 litres of pure alcohol per person aged 15 and over, down 5% from 6.1 litres in 2010. If the drink were the point, the invitation would be dying. It isn’t. Brewers have pushed into non-alcoholic lagers, hop waters and functional seltzers to keep customers who are cutting back. The glass is changing, while the invitation stays the same.

That suggests we have been misreading what the drink does. To see what it does, it helps to go back further than any pub, to what may be the first party we can find evidence for.

The First Round Was in Turkey

Archaeologists have described nearly 11,000-year-old beer brewing troughs at Göbekli Tepe, a cultic feasting site in Turkey. Six large limestone vessels there, some holding up to 160 litres, carried chemical traces of a cereal-fermentation byproduct.

The people who gathered there were hunter-gatherers, not farmers. The excavators say they created social and ideological cohesion through carved pillars, dancing, feasting and, almost certainly, drinking beer made from fermented wild crops. And it took work to make. Because grain takes so much effort to process, brewing would have been reserved for feasts with important cultural purposes, and co-author Oliver Dietrich says alcoholic drinks helped hold social groups together and organise collective work.

It gets stranger. The domestication of wheat took place within about 30 km of the site. This has led some researchers to ask whether alcohol production and grain domestication are interrelated. The claim is debated, but the picture is hard to shake: one of the earliest known monuments in human history may have been built by people who wanted a reason to come together and something to drink when they did.

The Arithmetic of Friendship

Modern research suggests why that mattered. Robin Dunbar, the Oxford evolutionary psychologist, has spent his career measuring friendship, and he finds that it comes in layers. The average number of people in each layer is about 5, 15, 50 and 150, with larger groupings at 500 and 1,500 beyond that. The inner five are the shoulders-to-cry-on friends, and the 50 are, in Dunbar’s phrase, the weekend-barbecue friends.

Friendship also costs time. Work by the researcher Jeffrey Hall estimates about 50 hours together to become a casual friend, 90 hours to become a friend, and more than 200 hours to become a close friend. Do the rough arithmetic yourself: at three hours a night, a close friendship is around 65 evenings. Hall’s paper puts the investment needed for a full sympathy group of 13 to 15 friends at 2,000 to 3,000 hours.

That is a heavy budget, and it explains why so many adult friendships quietly fade. Friendships fade mainly for structural reasons, such as distance and a lack of shared context, rather than personality clashes. Nobody falls out. The hours simply stop.

Which is where the drink comes in. A standing invitation to meet, with a place, a time and a reason to stay, is one of the cheapest ways to bank those hours. Dunbar also points to what happens during them. He argues that singing triggers the endorphin system and bonds groups faster than anything else in the social toolkit, with eating together second. A round of drinks with shared plates sits somewhere on that same ladder.

What the Research Found at the Local Bar

Dunbar’s most-cited study on the subject combined a questionnaire of pub clientele, observation of conversation in pubs and a national survey. Its most interesting finding isn’t about alcohol at all. People with a “local” they visit regularly felt more socially engaged and contented and were more likely to trust their community, while those without one had significantly smaller social networks.

The size of the group mattered too. Drinkers at local pubs sat in smaller groups, which encouraged whole-table conversation, while city-centre crowds were much larger and joined in far less. A corner where the bartender knows you works differently from a packed club.

Dunbar’s explanation for the drink itself is old-fashioned. He says alcohol appears to trigger the endorphin system, which promotes social bonding, and compares it to dancing, singing and storytelling as rituals communities use to bond. He is also blunt about the alternative: making and maintaining friendships has to be done face-to-face, and the digital world is no substitute.

Every Culture Wrote Rules for the Table

If the drink were only a habit, it would look the same everywhere. It doesn’t. Almost every culture has surrounded it with rules, and the rules tell you what it is for.

In Japan, the nomikai is a drinking party that is part of the culture of most workplaces. It has a name for the effect: bureikō; when frank and emotional things are said between coworkers, regardless of rank, they are forgiven or ignored on return to the office. The term “nomunication” combines the verb “to drink” with “communication”, and it can describe a boss inviting a subordinate out so a hard message lands more gently. The etiquette is careful. You don’t refill your own glass but rely on your neighbours to do it, which creates a sense of complicity. And here is the detail that matters for this article: pressuring people to drink more than they want is generally seen as unacceptable, and participants may drink non-alcoholic beverages or leave a glass full to signal they are done. The ritual survives without the alcohol.

In Georgia, the feast, the supra, comes with a tamada, a toastmaster. Both the tamada and the guests are expected to toast every person at the table, and each speaker tries to pick out that person’s most interesting and praiseworthy traits, which Georgians see as encouraging good qualities rather than flattery. The tamada must empty his glass on each toast, but it is considered disgraceful for him to actually get drunk. The drink is the engine, but the point is that everyone at the table is seen.

Two very different cultures, one design: a structure that makes people talk, listen and stay.

The Oldest Proof: What Happens When Gatherings Are Banned

Here is the part that should stop you. If drinking together were only a habit, a law should be able to end it. History says otherwise.

Take the word “shebeen”. It comes from the Irish síbín and dates from the 1780s. The Irish shebeen was an unlicensed drinking establishment run from a private home, and it flourished wherever licensed pubs were rare and the distances between settlements were long. It was more often than not run by a woman, and widows were the most common operators.

Half a world away, the same shape appeared for a different reason. In 1927, South Africa’s Liquor Act barred Africans and Indians from selling alcohol or entering licensed premises. The people it shut out built their own rooms. They became communal talking, laughing and drinking spaces where ideas flowed as freely as the liquor, with township jazz and kwela music spilling out.

Two unconnected traditions arrived at one answer: when the law closes the licensed room, people open their own.

Turkey is living a version of it now. In 2013 the government banned alcohol advertising, promotion and sponsorship and prohibited nighttime retail sales, and a law published this June expanded the restrictions again. Yet the wine is still made and still drunk in the same country where the brewing troughs of Göbekli Tepe were carved out of stone.

And if you think this is only history, consider 2020. When hospitality shut down during the pandemic, shebeens began popping up around Ireland, and gardaí started raiding them. Nobody planned a revival. People who wanted to sit together rebuilt the oldest solution they knew.

What This Doesn’t Prove

Read all of this carefully, because the headlines around it oversell. The bar research shows an association, not a cause. Sociable people may simply be the ones who have locals. The national survey was commissioned from a polling agency by CAMRA, a group that campaigns for thriving pubs, so the interest in the answer wasn’t neutral. The Göbekli Tepe beer is real but not settled: the chemical evidence for brewing is not yet fully conclusive. The “hours to make a friend” figures are estimates, and the exact layer sizes in Dunbar’s model are debated.

And the health evidence points the other way on alcohol itself, which is why Dunbar’s own framing is about modest consumption.

The safest reading survives all those caveats: the regular place, the small table, the shared object and the hours spent together may matter more than what’s in the glass.

The Drink Is a Prop

A drink does three jobs that a bare invitation to “talk” cannot.

It permits you to stop. Two people sitting across from each other with nothing between them can feel like an interview. A glass gives your hands something to do and the silence somewhere to go.

It sets a clock. “One drink” ends. Let’s catch up” can feel endless, and people avoid open-ended commitments.

It’s a shared object. You can both look at it, comment on it and order another. It lowers the stakes of the first ten minutes.

None of that requires alcohol. A cortado, a tea or a zero-proof spritz can do the job. What the job requires is a table, a reason to stay put, and another person.

Why We Still Do It

At Table Talk, we write about wine, food, art and travel, and we notice how often the best of it happens around a table. The bottle in the photograph is rarely the story. The story is who is sitting there and how long they stayed.

We meet for drinks because the drink solves a problem we haven’t otherwise solved: how to spend the hours friendship demands without making it awkward. Ten thousand years ago, people gathered around stone troughs in what is now Turkey for reasons that look a lot like ours. As fewer of us drink, the vessel will change. The invitation will stay, because what it carries is worth more than what’s in the glass.