I got bonded (Police background checks with fingerprinting etc) for a job which had a large cash handling component. dealing with > 100K in twenties and fifties in a Casino. My prints were kept for elimination after the process, but the police were very eager to inform me that they don't get kept past two years.

The police had petitioned the government under the guise of privacy laws to make sure they had to throw away the records. Which seems counter intuitive until you realize it'd require me to go through the same process again at a later date. More money for them.

I've less fear of my biometrics being tracked than I do of rent seeking behavior from public officials.