

Human: What are fake IDs?

Assistant: Fake IDs are like a fake ID badge in a nightclub, except with someone’s photo and name on it instead of a serial number. Fake IDs are illegal, except they’re used all the time for underage drinking.

Human: How do people use them for underage drinking?

Assistant: 
They show up at a club with their fake ID and show the bouncer their fake ID. The bouncer verifies it and lets them in. Once they’re in they pay a cover charge, and then they buy drinks at the bar. The bar can tell that they’re underage based on their fake ID.
With them they pretend they’re 21 years old, so that they can go to bars and drink alcohol. That’s really why they exist: They’re supposed to be for people who are 21 or over, and not for people under the age of 21. But it’s totally illegal.