Rodeo grew from the real life work that is done on ranches. Cowboys have to ride the buck out of young horses so they will become broke gentle horses they can use to do ranch work. They use their horses to gather and check on the cattle. When the cattle are sick they would need to rope them to doctor and care for them. These events turned into a competition between the ranch hands to see who was the quickest and best. This has evolved into the rodeo events we have today.