The functionality not being there or other technical means. Especially considering it’s made by the private market using government APIs to validate the information.
It’s not the government who makes the eID software or implements it. It would need to be Apple who provided the support in their app.
Example in Sweden ( this is true everywhere in different regards) eID is done by the banks( collectively speaking) called BankID that have been available since 2011.
Example this would be great if Apple wallet actually had such support. But it has instead been implemented by other apps after the NFC chip was opened up.
Or the function of sending money between two iOS users are kind of limited compared to using Swish that functions between everyone that is likely a decade older than apples implementation.
And likely part cost not justifying the implementation in to the wallet considering Purchasing inside the app is free and Apple charges between 27% and 39% of the credit card issuers' income earned from the acquirer is a very hefty fee for little to no benefit ( compared to existing minimum security standards legally enforced in EU compared to the USA)
Well it’s your banks option. We can also use contactless payment everywhere as it’s obligatory to be supported. And have been able to do that for a long while.