Because many families nowadays lack of knowledge in investing, making a good business or creating a good passive income. School system in our society dont teach broad financial literacy they just want us to be a employee of big corporation and work our ass out 9hrs a day. Many people think investing is like a gambling and they also want assurance always when they invest money to a certain things. The purchasing power of fiat money is decreasing when time passed so its better for us to make our money work for us not us working for money.
Exactly, this is what I have been trying to explain to my friends for a long time and yet they do not believe me, the school system is designed to create good employees, but it's not designed to create individuals with independent thoughts, if you take the time to read about the success stories of many businessmen you'll see that many dropped out of school and it's not really surprising because they were not learning anything that it was useful for them.