There's a pretty significant difference between tracking and targetting. It's pretty easy to limit an ad to a geographic area and target audience (to some degre

There's a pretty significant difference between tracking and targetting. It's pretty easy to limit an ad to a geographic area and target audience (to some degree of accuracy), you don't need to store any personal information to achieve this. However that is very different from tracking someone's identity to figure out their date of birth, nationality, and whether they drink alcohol.