@Gargron NFC-F rocks.
It's far faster and reliable than NFC-A, B, or (of course) 2D code scanning as in the DB app.

I would love for you to experience that, but the biggest drawback is, you need to come to Japan.

Still, I can assure you that it's worth coming. Some guy I don't know well also came for a train ride yesterday.
https://soranews24.com/2022/08/23/brad-pitt-hops-on-the-bullet-train-to-kyoto-gets-teary-at-a-temple-and-receives-a-pasmo-card-in-japan/