The thing is that they can override powered rails or inclines, which a player can't actually do, so when they pathfind to a selected spot they become impossible to manage and makes minecarts useless when it comes to mob storage or transport.
Confirmed for 1.12
Villagers try to move back to their village.
Mobs going towards the player.
Mobs running away from other mobs.
The thing is that they can override powered rails or inclines, which a player can't actually do, so when they pathfind to a selected spot they become impossible to manage and makes minecarts useless when it comes to mob storage or transport.