Long fixed interest period - rising interest rates

Hello everyone, due to the many threads with financing examples and seemingly always very long terms of up to 30 years, I just asked myself the following question. What happens if in 15/20 years for some reason the interest rates rise again to a level of 4/5/6%? (Purely hypothetical) Do you really believe that consumers who have now signed up at 1,x % can sit back relaxed and enjoy their deal from back then? I don't think so! What will happen? - Banks will terminate the contracts and try to wriggle out of them, like currently the building societies with their old contracts with high interest rates - Restructure and outsource the real estate financing, etc. - Search for and find reasons for a special termination right I can't think of anything better. But I am pretty sure that the financiers - should the situation (high interest rates in 20 years) occur - will certainly find many creative ideas...

Do you really believe that consumers who have now agreed to 1,x % can lean back relaxed and enjoy their deal from back then?

Yes

- Banks terminate contracts/try to wriggle out, like currently the building societies from their old contracts with high interest rates

They could try. But they will not do it, since there are no termination options from the banks' side.

- Restructure and outsource real estate financing, etc...

So? That does not change the contract.

- Search for and find reasons for a special right of termination

No, according to the Building Code that is excluded.

I am quite sure, however, that the financiers here—should the situation (high interest rates in 20 years) arise—will surely find many creative ideas...

No, if higher interest rates prevail on the market, the banks will finally make money again. In the current situation, if interest rates remain low for longer, many banks will get into economic trouble. Many already have operating results that are actually no longer sufficient for survival.

A real estate loan is directly refinanced by the bank upon signing the contract. That is a completely different situation than a building savings contract.