If you wanted to be truly biometrically private nowadays, you'd need to wear a Darth Vader suit over a ghillie-suit and forest gump leg braces everywhere public

If you wanted to be truly biometrically private nowadays, you'd need to wear a Darth Vader suit over a ghillie-suit and forest gump leg braces everywhere public, which includes inside your house. No face, electronic voice, no thermals or IR, no gait detection, height equalized by leg brace, gloves with fake finger prints. Of course you'd stand out like a sore thumb and that's the point, I'm sure it's been engineered that way to capture us all in the ideal panopticon. If you ever wanted to dodge the draft to the Vietnam war 2.0 or a bill collector with access to all this information, you'd have a very hard time.