Unicorn Club is for supporters of an alcohol-free lifestyle and those who occationally enjoy a night without alcoholic drinks – without needing to explain it.
The Unicorn also spreads awareness that excessive use of alcohol is not ok.
The “Ancient” Unicorn-Club-Pin means that you don't ask people why they don't drink alcohol, and that you don't need to justify yourself for a non-alcoholic drink. The Pin is meant to spread awareness.
For those who want to show that they don't drink alcohol at all, there is a Shiny-Golden Unicorn Pin.