Another issue is not only the establishment of better infrastructure, but also the maintenance of existing infrastructure.

The postal services are a great example of failed privatization.

In many areas letters now take weeks to arrive or dont arrive at all. Meanwhile many processes require written communication by law. My fathers business was regularly struggling with it. Think about it. You get your invoices late. Your invoices to customers are late. You receive letters from the tax office demanding a reply within two weeks, but they took three weeks to arrive. Each and every time you have to explain, that you couldn't act before, or you need to talk to your customers, why they didn't pay yet.

Germany is exceptional at creating itself so many inefficiencies that it is a cloes to a miracle when anything actually just works for a change.