I do not think that in modern times, Kings and Queens have anything to do with the real history of the time. Perhaps in the long distant past when they were the leaders of the armies that rampaged throughout the countries and could and did impose laws by themselves.
History is how people live their lives, work, eat,make their homes, etc. etc. Nothing whatsoever to do with glitzy expensive ceremonies with a few people with silly titles prancing around in the dressed up costumes.
But, of course, it does keep a lot of people happy, happy with their lot!!!!!