I was thinking the very same thing with my most recent round of government applications. For BOTH age and pay concerns, I don't understand why that is required. It does not serve the applicant to have that information available, as they should not be part of the decision to hire.
Does anyone know of another way for agencies to verify (for qualification determinations) an applicant's prior service, without those details being revealed? Isn't that the only reason an agency is supposed to use the SF-50 in the application process anyway?