Some users might have issues with the automated age verification process, or with Persona specifically. It would be nice to have the option to manually get age verified by a vrchat staff member instead. That way the privacy concerns are more managable, the data processing is completely on VrChat's side so it's easier to validate the complete deletion of any personal data and outliers for whom the facial recognition might not work correctly would have a second chance to get verified as well. I can see how this would increase the need for staff members, but the broad majority of people would be covered by the automated process, and age verification and privacy are both so important that it should be worth it.