Why does the MLB only use wooden bats?

Wood bats are intentional in major league baseball because they are not good choices to hit a baseball. Because of this, it is much much easier to hit a ball hard with a metal bat, and switching to metal (or really anything more structurally sound than wood) would be an unfair advantage to the hitter.Click to see full answer. Similarly one may ask, why are aluminum bats banned from MLB?There are on going rules committee discussions to remove aluminum bats from division I NCAA college baseball because of the injury factor. Because the ball exits the aluminum bat with a higher velocity than would a ball from a wooden bat, there is naturally a greater danger of injury to defensive players.Subsequently, question is, why does college baseball not use wooden bats? The reason why high schools and colleges use aluminum bats over wood is to cut the costs of purchasing new wood bats when they break. “It’s much more cost-effective to keep using aluminum bats. Economically I can tell you that Moraine could not afford a year with wooden bats.” Also asked, does MLB still use wooden bats? Major league baseball has required that its players use wooden bats, but the aluminum bat has come to dominate the lower levels of baseball, from Little League to the college game. Some of the energy (of the collision) is transferred into the bat instead of the ball.Why do wooden bats have a hole at the top?By cupping out the end, that will remove any unnecessary weight that is toward the end of the barrel and allow a player to have more control and give them quicker swing speeds. Quicker swing speed translates into increased exit velocity and further ball flight.