This answer will get me negative points but I must speak my mind. (1) Yes, coming from a rich family helps. A lot. You get the cushion and above all you get the right life advice. Your probability of success increases. (2) Yes, coming from a poor family hurts. You get neither the cushion nor the advice. But that's it. These factors simply impact the probabilities for success. They do not eliminate your chance or hope for success. Agreed that if you come from a middle-class or poor family you have to work harder and sacrifice more when compared to rich kids. And I know life is not fair. But guys, for god's sake, do not think for a second that you can't do it. There are enough examples of middle-class kids doing amazingly well. Think about AirBnb founders.
Please do not quit trying just because rich kids have a better chance than you!
It still can lift the bar out of reach of what is worth risking. Someone not rich could try to bootstrap something and work more than 40h/week etc., but at a much higher cost in quality of life on top of the lower probability of success.
Please do not quit trying just because rich kids have a better chance than you!