Having an electronic device carried on us to give us an 'identity' is silly, it just get stolen or hacked or swapped or something. It is no different to just putting a MasterCard under the skin of our hand...nothing new.
We already have pieces in our bodies that are unique, like finger prints/retina/iris/DNA.
What's wrong with just scanning DNA by touching a device which takes some skin or hair cells etc, or looking into a scanner, then matches our DNA/Retina to an identity stored on an Internet database..
The benefits they claim (no more wallet) can be had without turning us into an "item" with an artificial implanted chip like a dog.
Any average surgeon(or not) could easily swap a chip to another human, so really, artificially implanted identity is not the way.
A chip is not identity of an individual, a chip is a number with no attachment to our body. DNA IS our body, DNA IS our identity.