It's just a way to start tracking your personal data as young as possible.
Let's be serious, this has nothing to do with parenting. Pampers gets your and your parents full name, DOB, address etc. This is valuable information to sell to baby food, clothing, toy companies and then children's stuff marketeers and so on throughout your life - your first bank account, your social media and virtually everything else that the parents of a child and a growing person can be targeted with.