I’m also perplexed when my parent won’t give the State department their SSN, but received SSN benefits, and Medicare, and pays taxes to the IRS. They say they don’t want “the government” to have their data, but oddly think the government doesn’t already have a dossier on them.
I love the scans as they speed up security. I traveled recently, internationally to and from the US and it was nice to just scan my face and show my passport and not need to scan my qrcode boarding pass.