No one is forcing anyone, but as several people who have worked in Denmark can confirm there is a social communication ban on people who do not want to drink wth the native pupulation.
Students and workers will discover that they are greeted polite and questions regarding school or work will be both asked and answered.
But if you want to know anything but the email-address of the people you either work or study with, you have to accept an invitation from them to a bar. It is still not binge-drinking but after the first beer Danes open up.
That's why High school parties serve alcohol even to younger teenagers, where our legal limit is 16 years if you want to buy alcohol in a shop. High School parties are closed membership parties and then the official age limit does not apply. The same goes for our universities. Our strategy against shootings from isolated students is to see to that they socialize - even persons who will be considered geeks. You will find Friday bars serving alcohol and we have not had a single shooting on campuses since 1993, when they introduced this strategy. These bars are financed by companies who label the beer with the company name so they can attract graduates.