Quote from Chandler in The One with the Hypnosis Tape
Chandler: You know, I would have bet good money that he'd be the first one of us to get married. Phoebe: Isn't it fantastic? Monica: Yeah, but don't you think he's a little young to get married? Phoebe: Well, he's 18. Ross: Exactly. It will be illegal for him to drink at his own bachelor party. Joey: Yeah, or to get a hooker. Chandler: Always illegal, Joe.