That's too cheap: Franziska Giffey, Berlin's SPD mayor, is pushing ahead in the capital with a 29-euro ticket on local transport and praises the model as a model for the ticket debate in the federal government.

In fact, going it alone in Berlin thwarts pretty much everything that is now necessary in public transport.

First, Berlin pulled through the cheap ticket without the transport association partner Brandenburg.

Commuters from Potsdam and the surrounding area have none of it.

Instead of cooperating across national borders, which will be necessary for a real tariff reform, it remains confusing for customers.

Secondly, many Berliners already travel at reduced rates.

The new flat rate is therefore financially tempting, especially for those who can pay more and finance buses and trains.

Thirdly, it is almost a provocation to stylize yourself as a pioneer when others end up paying for it: The discounted ticket costs Berlin around 100 million euros.

As a reminder, the capital is the largest recipient of the state financial equalization with 3.6 billion euros.