self-identification

self-identification

You're entitled to identify as African-American, I couldn't care less and the only context in which I could imagine collecting that information would be as part of the diversity survey process if (someone else from) my company had hired you.

So far as I know in my country there are no "entitlement programs" for being of African descent, but you would not be elligible for such unless you actually proved you were immediately descended from African immigrants rather than simply identifying as African-American.

We actually measure lots of cultural artefacts by self-identification, sex and sexual preference, ethnicity, and first language are among them. If someone fills out the census to say they're Female, Native American and Homosexual and speak Welsh at home then the results will reflect that without anyone coming back to peak through their bedroom window and check if it's true. Of course it's a criminal offense to lie, not to mention a silly thing to do.

In theory we could measure all these things directly, we could take a blood sample to identify biological gender, and use genetic markers to find a blood line (each such line is loosely associated with what we call "race" traced back through our ancient ancestors) and we could insist on observing people without their knowledge to determine which language they use, and use an old psychology trick to measure their interest in attractive male vs female bodies in various states of undress. But all these things would be unnecessarily intrusive, which is to say rude, not to mention they might not really measure what we're interested in.