Construction costs are currently skyrocketing

It is so incredibly convenient to insist on and hold on to your pre-made opinion or prejudice. People only see their limited current state. That also has something to do with distrust ;)

No, it’s just a question of what you want. Just because YOU don’t want to inherit anything (which is okay) doesn’t mean others have to see it the same way. It’s not always the case that children and grandchildren already have something of their own when you pass away. Especially nowadays, when people often have children late. If you have children at 30 to 35 today and they have children at 30 to 35, then that fits quite well for the grandchildren. And it’s also a question of costs. Often you pay about the same for a leasehold as if you were paying off the land. And if you buy land when you’re young, you’ve paid it off after 20 to 30 years; with leasehold, you pay it your whole life, possibly 50 to 60 years. And if you want to sell your house with leasehold, of course you get less than if you sell your house with paid-off land. That can be interesting if you have to pay nursing home costs. In some cases, it simply can’t be helped; if you can only get land with leasehold, then that’s how it is and you have to bite the bullet. But stubbornly sugar-coating that and accusing those who think differently of narrow-mindedness is unnecessary.

(...) I don't want to leave anything behind either. That also means no debts. What I want to leave behind are beautiful memories – people shouldn't mourn me and console themselves with the inheritance, but instead raise a final toast to me and celebrate with the other survivors.

It's an attitude, but it's not mine. Very few are able to build/buy a house without the family or the children having to go without. Whether it's vacations or even "just" time with the parents because they are busy with DIY work. It's only fair that the children eventually inherit the house. For me, that's even a given. I don't bring children into the world just to tell them, "So, for 18 years you cost me money, now go, you get nothing, I squander the inheritance down to the last cent. But you can cheerfully toast me when I'm dead."

We had also looked at a hereditary leasehold house. It had been built on a field by the father of the current owner. He had been a farmhand at the neighboring farmstead. Property 2500 sqm, lease about 200€ annually. The lessor (now the daughter) had no interest at all in buying the house. It would have only meant work. So good offers were made to the potential buyer regarding continued lease or purchase. At other times, however, she would have had to buy the hut when the contract expired.

But then persistently sugarcoating it

As you can read, I also write about the disadvantages. Of course, it is not for everyone.
But that is exactly why one can get information here.
There is a difference between someone stubbornly defending their point of view and someone informing others.
It becomes a problem when there are those who spread untruths here out of ignorance.

It’s only fair if the children eventually inherit the house.

So inheriting as a way to buy off a guilty conscience for wrongdoings during one’s lifetime? I haven’t heard that before, but it can also be an attitude.

I don’t bring children into the world just to tell them, "So, you cost me money for 18 years, now go, you get nothing."

I didn’t write that, please don’t put words into my mouth. I merely said that I don’t want to leave an inheritance.
I assume that my children will stand on their own two feet as soon as I die and simply won’t need compensation. At the same time, I will make sure that they have to deal as little as possible with care, estate administration, and funeral arrangements. As someone who has already had to do that, I know that it’s a task no one wants to do, no matter how well they might be compensated through an inheritance.

No, it’s simply a question of what one wants.

My remarks were more about the statement that you wouldn’t build on leased land and that it can’t be inherited. That’s not the case with hereditary leasehold.

Doesn't leasehold inevitably lead to a renovation backlog at some point? As soon as it is inherited by the next generation, one considers whether investment XY still makes sense based on the remaining years, right?