Just like facebook farming data, folks don’t realize how their voluntary submission of dna will lead to their downfall.
The bigger thing to me is that i think the “where your ancestors came from” feature is a scam. I think that;s just the hook to sell people on it.
If you’re looking for family, it might be the only way to find them.
As for crime, the first thing police already check for is DNA evidence. Fingerprints and physical evidence are not that helpful.
Like it or not, this is the matching technology of the future.