Or are they cloning existing IDs, and the buyer doesn't get a choice in the name?
I scanned the 2-D barcode on my license using a generic barcode reader on my phone, and it's a PDF417 barcode that contains all the information that's printed on my id (number, name, address, license type, physical descriptors, dates, organ donor) as well as a few other fields (revision number of the card format, and an inventory control number that looks like the concatenation of the DL number, state name, license type, and some other fields)
How do you prove someone once showed you a fake ID? Well, back in the $1 per shot polaroid / kodak instamatic era, you didn't. So the fake ID owner got away with it and bar owner got punished, which is the only reason bars cared about carefully checking fake IDs.
Now with a machine the bar has a fighting chance in court, the police verbally claim the bar served an underage patron, and the police provide a person residing in the city who is underage, but there is nothing in common between those two people, your honor here is a copy of the patron's license clearly showing he's 22 at that time and there's no legal record of my patron ever having been charged with a fake ID infraction and my patron is not the same person as the supposed police witness, so, your honor I request you dismiss the case K thx bye.
There is also the 3rd party to blame, if a bouncer knows some punk who gets drunk and starts fights, oh so sorry your ID failed the scan, now go away. "No point arguing with me, buddy, you need a better fake ID, yell at the guy who sold it to you".
I've seen people get let in using the worst fake IDs I've ever seen and I've seen people rejected using real IDs. It all depends on the bouncer's experience and how much the bar owner cares about not letting in underaged people.