In Texas, there's an association, TASO, that is in charge of referees for all sports. There is no requirement about having experience in officiating at all. You attend a few meetings, pay the fees, and start officiating. The crazy thing is that once a TASO member, you can move from sport to sport. It's easy to see officials that are definitely out of their depth. As a player, it is insulting that they can't play their sport because the one in charge of the match is not very good. As parent, it's aggravating because their kid and teammates are getting boned. After personally experiencing the literal "inside baseball" of Texas high school officiating, they bring some of the flak on their officials in their attitude on who can be an official. I knew people that just slid from one sport to the next based on season as a source of a fairly decent income. Volleyball refs just sit in a chair, so physical fitness doesn't really limit how good of an official they can be. Soccer refs on the other hand...