No clunky wearables? No chest strap on the treadmill? Heart rate and respiration? Monitors everyone in the house simultaneously 24/7 on a cheap rpi? I hope this doesn't take years to come to market because this seems incredibly useful.
There are positive sci-fi use cases, but ONLY IF the data and automation are entirely under control of the human subjects, e.g. self-hosted home server, local GPUs, local LLM, offline voice recognition, private 3D imaging of home and human, etc.
Comcast renting out wifi hardware to all of their customers,
and already bringing that technology to the masses should be concerning to you then.