I have a coworker that quit his job, got broke trying their own business (he argues he chose his cofounder poorly), but he got his old post back, so in a way he

I have a coworker that quit his job, got broke trying their own business (he argues he chose his cofounder poorly), but he got his old post back, so in a way he regrets it, but he had his chance and didn't miss on opportunities that much. I should ask him, but my take is that it shows that you don't risk as much as you believe if you take risks and are good enough.