I went to Target to buy stuff for a friend after they gave birth a few years ago. I made sure I paid in cash, but I imagine they still tried tying it back to me via license plate recognition.
Also relevant - Target sending targeted ads to a teenager whose dad didn't know she was pregnant yet. Such an annoying but prevalent part of life that's only really avoidable by shopping at local places, always paying cash, and never joining any loyalty programs even if they have nice benefits.
https://www.forbes.com/sites/kashmirhill/2012/02/16/how-targ...