That's somewhat outdated and Wikipedia even slightly alludes to it with "Some banks are phasing out girocards". "some" in reality is "nearly all". Girocard is practically dead and I don't see it coming back without state intervention. There's a few holdouts in stores here and there that only accept Girocard and no other cards (my vet for example), but it's on the decline there, too.

"Privacy concerns" won't hold out long against relentless pushes for more deregulation of privacy laws for AI/other tech/"the economy"/etc and removal of data access hurdles for police/security services/etc coming from certain political spectrum - whose voters generally don't have high concern for such fundamental rights issues when at the ballot box.