LLMs need to have the same warnings attached as the old psychic hotlines: "Must be 18. For entertainment only."
That being said, I'm not sure that this is any more ridiculous than an ad asking for ten years' experience with a piece of software that's only existed for three. HR departments have never had much contact with reality.
And thus begins the three-legged race between imaged-based age verification and kids. (Prediction: the kids will win, but it will take the other side a looooong time to admit it.)