I've noticed that one as well. These wealthy people raise their children just like how everyone else raise their children by not taking away their childhood traits forcibly to focus on money making aspects. But, they are raised without getting spoiled with money to spend on all useless things. In fact they are being taught how to spend money wisely and how to be resourceful even with a lot of money the parents have. Again, these are being taught without stealing away their childhood traits. This is the difference between wealthy people raising their children and the average one who just let their children enjoy spending mindlessly.
When parents raise their children not by pampering them, of course the children will be better prepared to face various situations in their lives and they will also be able to survive by earning their own income to meet their needs and not depend on their parents, of course this is it would be better than pampering children so that they would have difficulty if when they grow up they can no longer get attention from their parents.
And for those who can spend their money on the things they need, of course when they have their own income they will be able to manage their finances well.