[d1sxeyes]

I don’t even believe that would be required. Providing proof of residence or citizenship would likely be considered excessive under the GDPR.

[pooper]

I anal but I understand that in the US, it is unlawful to falsely claim to be a US citizen. I don't know if the EU has something similar?

[d1sxeyes]

I am also not a lawyer, but asking if someone is an EU citizen is probably not acceptable in and of itself.

The DMA Chapter 1 Article 1 section 2 makes it clear that the requirement applies to services offered to users “established or located” in the EU.

You can be located in the EU without a residence permit or citizenship perfectly legally (and it’s not even clear whether being LEGALLY located or established in the EU is a requirement).