I may be biased because I worked for six seasons as a Little League Baseball umpire, but I’m not sure there’s a better job out there for teenagers. First off, you get to be outside. Second, you’re being mentally stimulated the entire time as you’re an integral part of the game. Third, the shifts are short (Little Leagues commonly have a rule that games cannot last longer than two hours). And fourth, the pay is decent. (When I was a Little League umpire in 2008, I made $30 per game behind the plate, or $20 if I was in the field, and it’s still about the same.)
Sure, this job isn’t for everyone. There is the prerequisite of 1) knowing the rules of baseball, and 2) not being afraid to get behind the plate and call balls and strikes. But if a teen knows the rules and isn’t afraid, this is a great option.