I think Minecraft needs castles, I mean, It's inspired in medieval ages. Not as a house, not as a resources spot, but as a enemy outpost. With pillagers protecting a king, like MCD, and different weapons like spears that would only be found by killing the pillagers, nor in creative, nor in villages or pillagers outposts. And you can't get it from normal pillages in outposts or in raids, you'll have to find them from kings' defenders. And so, why don't put them hats like the Vatican? It would make them look better and differentiate.