Back in high school, I knew a handful of people who wanted to make games: these include Jeff Hangartner ("Tsugumo"), who I taught some Quick Basic tricks to so that he could make an RPG -- he now supports himself making indie games; Derek Yu (a classmate of mine), who is now a bazillionaire off of Spelunky (back then, he and another classmate of mine were making Eternal Daughter, his first indie game); and Tom Cadwell (whom I met at a summer camp), who's now VP of Design at Riot Games, and got a job at Blizzard off the strength of his indie game Strifeshadow. To be sure, there were some who dabbled in game creation but turned to other pursuits in college -- they're now professors, lawyers, coders at Google, etc. It's not like the "success" rate was 100% -- but it was probably around 20%. I also knew lots of guys in bands, amateur actors, poets and writers -- none of them parlayed that into any meaningful money. No matter how hard you work in those fields, you don't make thousands of dollars unless lightning strikes.