More useful golems

Iron golems made by a player should defend that player from other players or mobs who attack them if they are within a certain proximity of the owner player when they are attacked, the only major downside to this feature is that it could reduce the difficulty of enemies like the wither, however this is irrelevant as iron golems can already attack the wither . This could also apply to snow golems

This would be good for several reasons, for one, it would make the creation of iron golems useful as opposed to taking one from a village, and so makes the creation of iron golems a useful feature again. Another reason this would be good is because it would allow for a more diverse range of pets in game, as currently the only other main tamed mob that can assist in pvp and combat is the wolf, and the iron golem would greatly improve this.  It would also make multiplayer more interesting, and could even make snow golems useful for something other than placing snow.