2 Deutsche Bundesbank, Outlook for the German economy for 2021 to 2023, Monthly Report, June 2021. 3 Deutsche Bundesbank, Households’ motivations for saving during the pandemic and their implications for the  projection, Monthly Report, June 2021. 4 European Central Bank, Eurosystem staff macroeconomic projections for the euro area, June 2021.
But look at Switzerland: the country has its own currency and interest rates are extremely low nevertheless, namely because investors consider it a safe haven like Germany. You mentioned price stability. Inflation is currently very low. Where’s the harm in that? It is, above all, a question of confidence.