This is not true at all. One of the reasons fingerprints and DNA are so valuable is that they are left behind by people as they go about their business, and you can go in retrospectively without their knowledge and collect their biometrics.

What if the palm recognition is done without the person's knowledge via camera? Fingerprinting can already be done at a distance. Here's a story about it below from back in 2011.

What if the technology is built into door handles or other objects that require active use?

As soon as there is an incentive to scan people's palms, technology will be implemented or created to do so. However, Amazon has no incentive to let the public know if there's evidence of multiple people with indistinguishable palms, the rate of false identifications, or other shortcomings of the software.

https://www.technologyreview.com/2011/01/14/197589/fingerpri...