New Mob!

My idea: So i personally think that minecraft without mods should also be mix of reality and myths by that i mean that like there are cats wolfs dogs and all that that is real but i think we should add stuff in the overworld like in the woods and woodland mansion also should be centaurs wich you can ride but need to become freinds with from giving them bread 4 peices or something and also add a minotaur as wetland boss. Why should there be these things:

because to make minecraft better like people having centaurss so cool and also having a overworld boss you can fight gain xp because there are sea bosses like gaurdians end boss nether boss but no land boss

How:so i actually my mac doesnt support blockbench or else i would share graphics but we would love these updates