> I also do believe there is a system to allow countries to do identity attestation

not sure about the rest of the EU, in Poland there's a thing called Trusted Profile ("Profil Zaufany") where your bank serves as an "identity provider", i.e. you basically use your online bank account to verify your identity. it's kinda weird! but after that you can use your TP to sign and submit most (?) government forms/docs so it's pretty nice