If you want to know exactly, it is a savings book. Birthday money, everything was invested, even his confirmation money, the training salary that was left over when he still lived with his parents, the 2 cars, and as described above, only part was earned by himself. The rest is inheritance from his great-grandmother. But he saves and saves and saves. I bring in a small amount of equity which I actually received from my grandparents back then. But you are basically right. Nothing is set yet with us. We are still very young after all, it would have been an option but as I see there are more hidden costs. It's clear otherwise everyone would be building today.