Spain is a country of collective revelry and we have been living with the tensions of group disbursement for eons. In the Basque Country and Navarra, short drinks are popular among groups that spend the night from nightclub to nightclub.
In these circuits, paying separately is torture: if you go to eight taverns, the night can turn into an ordeal. The boat can work, but when it's time to go out to bars and tapas, the rounds are a way to satisfy many followers in Spain. But they require a discipline that is incompatible with the intake of distillates.