Why doesn’t the bank design a slightly different top for different cards?

Because the cards aren't different cards.

In my case, I have a personal card and a shared card from the same bank. The card type is the same, one just happens to have my spouse as a co-owner.

Some banks do allow you to pick a card look/image. Most don't.

But whatever the case, Apple really should allow tagging cards in the Wallet with a small icon/emoji/something. It doesn't need to be fancy - just enough to visually distinguish two otherwise visually similar cards.

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jqpabc123 2 hours ago | parent [-]

just enough to visually distinguish two otherwise visually similar cards.

How about a simple, old fashioned text label for each card?

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bombcar 2 hours ago | parent [-]

For all I know there is something like that, but it'll be buried in settings, probably in accessibility, where nobody ever goes.

Discoverability of options on the iPhone is fraught with danger and distrust, I learned about CarPlay widgets a few days ago and I've used it for years.

https://www.youtube.com/watch?v=-rUminiQjtM

	▲	jqpabc123 2 hours ago \| parent [-]
		From my limited experience, Apple often denies the obvious for the sake of asthetics. For example, the simple utility of a [Backspace] key.