This is one of those questionnaires that is generated based on your credit report and other items related to you identity. So it's extrapolated from your birth

This is one of those questionnaires that is generated based on your credit report and other items related to you identity. So it's extrapolated from your birthdate and probably makes it ever-so-mildly more difficult for robots to get it right than it would if it just asked for your birthdate.