Item retrieval by players and tamed pets

It would be great to add a set of features that allows a player to pick up arrows that are shot by skeletons and it's variants, pickup tridents that are thrown by drowned zombies except the trick here is the durability of the tridents that the player picks up is the durability of the trident when the drowned zombie threw it. Also when a tamed wolf kills a mob, it picks up the mob drop and brings it to it's owner. If the health of the tamed wolf is low and the mob killed is a zombie or any of it's variants, the tamed wolf would eat the mob drop (Rotten Flesh) to regain health. This way you can preserve your pet since they are a bit scarce to find, and makes bows more useful other than defeating the ender dragon since you could easily restock your stack of arrows even though presently moving over these specific mob projectiles only makes them disappear.