1) Would anybody benefit of never having a real ID? 2) Let's say that for some reason (I hope you come to stumble upon one, because I thought about it and have no clue) he has an ID but it's fake. Meaning it's not official. Would it make sense? Only having a fake ID and not an official? I have already found real instances where people have never had an ID or birth certificate for that matter. What troubles me is why. How can one benefit out of it? I'm writing a story where it's very important that one of my characters is a "ghost". Never had an authentic ID. He is a thief and a con. Would it be believable? I don't care if it's implausible. Just as long as it's not impossible we're good. Enlighten me, please.