You shouldn't exclude people just because they don't drink.
Peter is friends with a lot of people, including some who don't like alcohol.
Peter wants to celebrate his birthday at a local bar with some friends.
Peter invites as many people as possible to the celebration.
Peter only invites his alcohol drinking buddies to the birthday celebration.
Peter's non-drinking friends have fun alongside everyone else at the celebration.
Peter's non-drinking friends become mad at him for not inviting them.