most immediate, would be my children would identify me, next one is under the assumption this suddenly crops up as a policy change, such a policy from the start would be a non starter, however familiarity of face would overide the need for what would be plutobeaurocratic requirement.

the really tight one is how to proceed when there is a change of lawful custody or guardianship, because, unfortunately, divorce, and domestic violence happens, and the lag between court order and, notification of custodial reassignment should be close to zero.