Construction costs are currently skyrocketing

Sounds harsh, but maybe one should slowly say goodbye to the standard; every child gets their own room;. Children can also share a room. Just adjust one's own needs/dreams a bit to the given circumstances.

I come from an environment where two children of different genders had to share a room and can say that undisturbed learning is made quite difficult by this. Also bringing visitors, which has the disadvantage that it is more difficult for parents to casually find out what kind of people the child is associating with. I assume that many of the young people who hang out in rather, let's call them, "questionable" places belong to those who have no room, no retreat possibilities, and no own realm at home where they can try out and realize themselves (just singing loudly, dancing, conducting an orchestra, playing air guitar, dressing up, daydreaming ;-)). I also think that the influence of so-called "peer groups" becomes even greater if children can never be alone at home, cannot think or reflect undisturbed. In my experience, it makes a difference whether a child/teenager is "on the street" (or "flees" to the street) because it is exciting and interesting there or because they have no space at home.

And I found it awful before having to share a room with my brother who is 4 years younger. Hardly any space for toys, no visits from girlfriends possible, no reading a book in the evening, etc.

I never had my own room until I moved out at 20 and believe that some blatant bad decisions, without wanting to go into detail now, are due to that. I just "lived" in the forest and on the street, searched for what you can more easily find in your own room, which under normal circumstances is a protected space ... and was surrounded by people who also didn’t have their own rooms at home. I really cannot recommend it. I don’t have my own children (exclusively bonus children ;-) ), but I understand parents who give up other things to enable their children to have their own room and think that is a loving and wise decision.

But this really drifts into strange areas here... everyone has their opinion, but I find it quite "special" to generalize from oneself to the whole world. If (financially) possible, then a single room, if not, then not. The children won't die from it before their 18th birthday. Period!

I assume that many of the young people who spend time in rather, let me call it, "dubious" places are those who do not have a room at home, no retreat, and no personal space where they can try things out and realize themselves (just singing loudly, dancing, conducting an orchestra, playing air guitar, dressing up, daydreaming ;-)).

Counter-thesis. I assume that children who do not get everything from their parents appreciate the value of money and material things more and manage better in life. Personal example. My parents are ordinary workers, I did not have my own room for a long time and I am the only one in our dynasty who has an academic degree. I earn everything myself together with my wife and do not run to my parents when I want to have a house. I did not end up on the street. Now the question is who is right?

Unfortunately today a bit roundabout
Neighbor of a friend had a photovoltaic system offered
Probably about 10kw plus 8kw storage, 31,000€ including installation

I somehow found that very expensive or am I mistaken?

Unfortunately today by way of three degrees of separation A neighbor of a friend had a photovoltaic system offered to him Probably about 10kw plus 8kw storage, €31,000 including installation I found it somehow very expensive or am I mistaken?

I find it extremely expensive. Storage doesn’t cost €1,000 per kW. So in the worst case it’s €23,000 for the photovoltaic system. So €2,300 per kWp. Extremely much. Probably a deterrent offer.