You can't do anything about it. The employer is legally allowed to ask for birth date and SSN (neither is prohibited by law), so that they have the information they would need, if necessary or appropriate, to do a background check. (By the way, it is NOT illegal to ask for birthdate; it is illegal to discriminate on account of age, but a bar against discrimination does not prohibit collecting information about age.)Employment is employment at will, and that works both ways: any employer may ask for any information not legally prohibited, and refuse to hire or even consider someone who will not provide it; and any prospective employee who finds the questions inappropriate or offensive can refuse to fill them out and walk away from the opportunity.