I didn't realize this was some secret. Someone who has parents who are doing well and can pay for their college and living expenses indefinitely will be at an advantage. They can take risks others can't.
BTW, this is true from the time someone is born. Parents who are well off will send their child to pre-pre schools, pay for the best elementary, middle and high schools. Then their child gets to go to college, likely loan free, and can focus on college and not working to pay the bills. I'm not saying there is anything wrong with this, and I certainly didn't grow up this way. I'm surprised it wasn't common sense.