For these things you listed what we have already is enough and works. We don't need to authenticate our ID with a 3rd party prone to data leaks, a simple person looking at our ID is good enough for a dealership.

Banks already verify your identity as well and don't require you to use a government app.

Law enforcement asks for your ID and check it with their database, which is already enough as well.

We don't need age attestation for accessing websites.