alt Hacker NewsTicket counterfeiting is the core problem that they are trying to prevent. If there's a fallback method then that fallback method can be abused to forge tickets.
EDIT: I know complaining about downvotes is a downvotable offense itself, but I'm genuinely curious as to what is objectionable about this comment.
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red_admiral • today at 5:02 PM
China's solution: your passport is your ticket. Not great for privacy, but persumably you also want to check that people banned from a stadium for their behaviour don't get in anyway.
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Forgery isn't relevant.
He's a known individual, a season ticket holder. He's not some random dude showing up with a paper ticket.