(I didn't know how bad things were for him until I went through his papers after he died.)
I began investing with my first real job, with another crappy car I repaired with junkyard parts.
A good friend of mine grew up in a family that qualified for welfare but wouldn't accept it. He didn't get past high school. He managed to make himself $10m before his tragic death. Yes, the US is the land of opportunity. Other countries can emulate it if they want to.
A couple years ago, I booked an Uber ride. The driver was a refugee from Afghanistan. He arrived in the US with nothing but his skin. Within a few months he had a thriving business, driving the Uber in whatever extra time he had left. It was fun talking to him - he was hella ambitious!