[fenk85]

I think the recent attack against the Irish health services agency shows the need for something like this

Once you have an EU wide digital identiy+authentication (with multifactor and biometrics and all that) You can then move onto implementing fine grained authorization for people to manage what data various government agencies get and can share

They will probably create a system very similar to what Okta does which is great as it would save 27 countries reinventing the wheel, and one thing about security that is important is not to reinvent the wheel.