I don't see why not. I know someone who is quite a bit smarter than me, and was definitely more dedicated in high school, yet spent decades working security (not Walmart, but not rocket science either) and 1-2 other jobs to pay their mortgage because their parents couldn't support them through college like mine could (and numerous other factors that set them back). While they have now gotten a degree and a better job I essentially got a 20-year head start on them.
Despite what people like to believe, even in America the single biggest predictor of a child's success is their parent's income.