Minecraft wiki entry for Summoning_jockeys, associated text: The mount, or the mob being ridden has little control since 1.12. (Before this update, the mount had complete control, the exception being chicken jockeys). They will have "resistance", however, where they will slowly (about 1/4th of their normal walking speed) try to do whatever they are intending (attacking a player, chasing a villager). However, the passenger will always have dominance over the mount and can move it at its will. Mounts will always give the passenger a speed boost, equivalent of the player's walking speed, faster if the mount is naturally faster than the player (such as a hostile enderman).