Hi, i'm from argentina. The main "not official" requisite here to enter a line is having a "padrino" (someone inside who vouches for you). If you screw up, it's the "padrino" the one who gets most of the heat. So it's really hard to get one. But that's for the lines.. You still can find job towing gliders and throwing parachutists. but you'll have to get your license validated.