Why people take turns to buy drinks
If you go out to a pub or bar with friends or work colleagues, you might notice that people take turns to buy drinks for everyone in the group. This is called ‘buying a round’ – and you will be expected to join in.
Before the Covid19 coronavirus, there was no table service in British pubs. It was annoying to have to get up and go to the bar to buy drinks all the time. The custom of buying a round was a way to spread the job of going to the bar, while making sure that everyone paid a roughly similar amount.
It’s a little different now that apps are used to order drinks, but even so the custom remains, because buying a drink for everyone is seen as friendly and generous.
If you are with a large group and leave before it is your turn to buy the round, it is polite to make sure you buy a round the next time you are all in the pub together. This way, you all end up paying roughly the same amount over a period of time and you’re not the person who ‘freeloads’ (gets everyone else to pay for you all the time).
There are some exceptions to buying a round: for example, when a clear social superior (such as your boss) says they will pay for everyone, or if you pay for your own because you can only stay for one drink.