I have recently received some criticism that my CV does not include the date of birth and nationality, and I that should add this information in further applications.
From the other side, I am not sure if it is moral to use this information as a selection criteria during the hiring process, especially for pre-screening before the first interview (where any questions could be asked).
The age can probably be inferred from other dates like university graduation. I am not young but still no so old that it would have major impact on my productivity.
The nationality-based selection seems of questionable legality (there is a work-allowing residence permit that I mention in the CV).
However if for some reason this information is highly expected, I would of course include it. Is it a requirement?
Edit: This question mostly applies to USA and European Union as I am looking for a job in both.