[piokoch]

When I rent a car I hate that some random person takes my id and xero copy it, then puts that copy on a pile of papers.

I would prefer if it worked the way "my id" works in Poland. When someone wants to confirm my identity, I am getting redirected to a "my id" provider (typically a bank I have account in), I log in, I see what data are required (for instance my age) by the data requestor and I am done.

Everything is recorder who was checking which data, when and why. If there is some leak, it is easy to find who should be blamed.

I am not a big fan of EU in its present shape, but if EU would make all countries to agree for some sane standard of identification in a secure, privacy preserving way, it would be definitely beneficial.

[dvdkon]

Ideally those requests would also include a "deleted after" date. If such a thing was implemented and trustworthy (kind of hard, admittedly), it would make me a fan of an EU-wide eID.

[mhitza]

That would make definite sense and should be straightforward. Instead of sharing your data, you would generate a certificate with an expiration period with which they can access your personal data stored in the system. Ideally this would be short lived and require periodic regeneration.