Not that I'd want some centralized chips, but there are some really interesting use-cases for self-sovereign self-installed implanted microchips. To be fair, harder to dispose of than a tag in your clothing, but to each their own.
So you just like cut your hand open and put it in there!?
They come pre-loaded in sterile needle injectors. https://image.nostr.build/dd7970a3a92ef632940b70b49210cb5f13827e9a1e44728b863a0e70650c27c0.jpg
That's weird. Interesting though I guess.