If it is in the stitching are you then wearing a beacon that can be used for targeted advertising, data harvesting, etc?
I also wrote a prescient short story, titled "Smart Furniture", published 20+ years ago, where the protagonist's day job was driving past people's houses to scan the tags on the interior, and he considered himself "better" than those folks who stood around in malls scanning the clothing of people as they pass by and accosting them with special offers. The ultimate form of "browser fingerprinting" in a way.
“I’ll explain later, dear.”
Google themselves has ad offerings making this fairly easy.