In the U.S. we used to collect palm/foot prints on every child within a few days of birth. Newborn fingerprints are difficult to collect, as skin is very delicate. Now we require DNA collection at birth.

https://www.aclu.org/other/newborn-dna-banking

With my youngest I found a clever way to "opt-out". Unfortunately at my child's 6 month pediatric appointment at a private clinic, the nurse charged in and demanded a sample to send in on the spot. She said they couldn't proceed with any services unless they sent the card in, as their license would be revoked unless doing so.

https://www.cnn.com/2010/HEALTH/02/04/baby.dna.government/in...

In my state you can REQUEST to have the collection card destroyed after 6 weeks, and before 18 years. But they do not guarantee it gets done. Which is just for the collection card. They make sure to "transfer but not sell" the samples to separate entity between that time, which keeps a copy and digitizes it.