Are a person being microchipped and being pierced similar?

Microchips are readable remotely, through clothing. Piercings can be removed. Tattoos can be covered with clothing.

It’s sort of like a dermal.
A dermal kind of puts an ear ring backing under your skin, so that you can put jewelry anywhere without a visible backing. Think cheeks or belly.

Microchips can track your movements; piercings can’t.

Microchips can only track you when you get near a sensor. The trick is to know where the sensors are.

But a piercing is not going to identify/verify who you are.