Identity Theft Resource Center: Beware of collecting, storing or sharing your child’s biometric details, including fingerprints and DNA, even if you’re creating a so-called “Child ID Kit” Don’t allow another organization to store that information unless you’ve vetted its security bona fides, and don’t ever carry such information with you, not even in digitized form. Some providers imply that such kits may help authorities respond more quickly in the event that a child gets kidnapped or runs away, by having a child’s photograph and physical description immediately available.”]
Source: https://www.cuinfosecurity.com/blogs/biometrics-for-children-dont-share-p-2169