If you built a house at, say, 30 years old in 1980 and sell it today, you are now 72. I don’t think that’s any great feat, but a matter of time. What do you think the Euro will still be worth in 2062 xD
It was about his grandma, she was probably 72 too ;) And no, being old is not enough for wealth. You actually have to do something for it, e.g. save regularly. Real estate is one way to achieve that. It was about this nice study from the Institut der deutschen Wirtschaft on net wealth by age. With €400,000 net wealth, as a household you already exceed the 80th percentile in every age group. This means, conversely, that most people even in their late 50s/early 60s, at the zenith of their wealth, do not manage to pay for a house just like that.
Even those who can afford it are rarely so stupid as to build a house without a loan.
It depends. The stock market is not suitable for everyone, and in my feeling, especially older people who grew up with high interest rates on life insurance and savings accounts find the stock market rather inaccessible. At the same time, this generation is quite averse to debt (because of the high interest rates back then...), and I firmly believe that some of them do build without a loan.