I can’t add a card to my wallet and I’m 13 years old

The Apple Family organizer will need to add the card. However, I believe the age in the Netherlands is 14 or 15. I was working with someone within the last few weeks and he finally figured out it was the age.

What country are you in? Some countries have a higher age requirement than 13. Are you part of an Apple Family Sharing group?

You Must be over 13 years old to use Apple Pay, 13 years old are not allow to use Apple in many Europe regions it doesn’t matter if you are a part of family members in family sharing