What Are Football Nets Used For? The primary purpose of a football net is to catch the ball, to stop it from sailing into an adjoining field or hitting an unsuspecting spectator. This of course speeds up the game, as less time is spent chasing runaway balls and applying magic sponges to winded spectators. football goals - the structure of a goal varies from sport to sport. Most often, it is a rectangular structure that is placed at each end of the…