What good to you think will come of getting rid of them?

We'd become a proper modern country where the person who represents the nation is chosen by the nation? We'd move on from a system where who's up front simply depends on who their mum or dad were? We'd rid ourselves of a system trained with centuries of imperial exploitation, racism and subjugation? We'd open up new tourism opportunities, with the palaces and castles being available for anyone to visit, a la Versailles?

And that's just off the top of my head.