Contact Tracing is an awesome way to use the technology in theory, however, while a bit conspiracy theory-ish, it can also be used as trojan policy to allow unfettered warrantless access to location data, mass surveillance, and anything else they'd like that could be exfiltrated from user devices.

Anything that has the ability to be exploited will be exploited for purposes.

We have a generally healthy level of distrust for our governments as well as big business, and given the consistent evidence, I feel that's generally warranted. (Government is supposed to serve the people, not the other way around).

I would never opt-in for this nor would I trust it.