Fletched Fiberglass Arrows

The advantage of fiberglass arrows are the cost and the durability making these ideal arrows for youth archers. This is probably what you'll be using if you're a backyard hobbyist.
The fiberglass shaft is primarily for beginning archers, they're low cost and strong durability make these ideal for young archers, rather than those pursuing archery as a sport.
Additional types of arrows as you become more proficient would be either aluminum or carbon.