Paper tickets are quite rare these days. Most people use a digital code or a universal RFC card.
They probably only sent this by mail because it looks like they tamper-proofed this ticket with microprint.
@fred In france, we can print train ticket ourselves so this is quite common. They have a QR code that the controllers can scan.
@NekoSock that's what I meant by digital code. You can print it, but their scanners can also read your screen as well.
Though if you have a standard (flex) ticket you can print it and use it in nearby busses.
@fred hmm I see
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