by your claim, the field can have any series of numbers, that there is no way to determine if it is accurate, and the law that this was done to appease is bad, as in not able to obtain its expected result. and so the data is useless.

Yeah, so this tells me you have no clue what you’re actually talking about.

You don’t even stop to think for a second that maybe some enterprise setting requires such fields. Maybe they have software that populates account information based on their HR systems’ data, auto-creating user accounts? Maybe they can find a DoB field useful? Zero clue, zero thought, just “I don’t use it, therefore it’s useless”.

No point in continuing this discussion, I guess.