Villagers, Witches, and Wandering Traders do not have a sitting animation in boats and minecarts

Issue : Villager,Witch and Wandering Trader does not have sit animation in boat and minecart.
Expected Results : Villager,Witch and Wandering Trader should have sit animation in boat and minecart.

Reproduce issues :
1.Spawn the mobs that affect.
2.Make it sit into boat/minecart.
3.As u can see they don't have sit animation in boat and minecart.