In the UK overall, 64% of the population support police use of facial recognition technology to some degree and only 11% were opposed to its use [1]. The survey also looks at support for different szenarios, but overall many generally did not oppose it, while in the US 47% oppose the use of flock cameras [2].
[1] https://www.gov.uk/government/publications/public-attitudes-... [2] https://www.reuters.com/legal/government/florida-bans-highwa...
The Flock stat is interesting because 46% of Americans believe widespread use of facial recognition would be a good thing (27% unsure).
Maybe people oppose Flock because it's not going far enough! Or maybe there is a coordinated campaign against a license plate reader for some weird reason
https://www.pewresearch.org/internet/2022/03/17/public-more-...