Your sample size and personal experiences are small.
I can easily contast your story with my own limited anecdote. I grew up in a poor dysfunctional family in a high school so bad it nearly was state mandated. I dropped out of university two years in. The rich kids in my class and many of my peers got degrees. Yet very few moved away and of those who did they all struggle to be more than entry level office workers or interns making double minimum wage at best Yet somehow I'm making 6 figures.