[toast0]

> The same is true in a physical card wallet.

You can markup a card in a physical wallet. And then originally identical cards become visually distinguishable.

[mh-]

Riffing on your comment: would be neat if Apple let you add a sticker to the corner of each card.

[pivo]

Yes, exactly. Or some simple text to overlay at the top of the card, it's a very easy problem to solve as far as I can tell.