Where does someone in their early 20s get the capital to just up and start multiple ice cream shop locations, and simultaneously find the time to work on an arr

Where does someone in their early 20s get the capital to just up and start multiple ice cream shop locations, and simultaneously find the time to work on an array of random software "projects/ideas"? This whole thread seems really fishy. The theme of an entire thread discussing building and selling businesses like it's just something you can choose to do in your free time or not ...