The British aristocracy is one of those peculiar national institutions that even its own members agree is logically rather absurd, but for some reason, nobody is bothered enough to get around to abolishing it. Indeed, at the highest levels - the royal family - there is enormous public support for its continuation: the Queen enjoys approval ratings that no democratic official has ever maintained over a comparable period of time, and unlike certain "elected" presidents in countries that only pretend to be democratic, she doesn't have to make up the numbers.
Thanks to shows like "Downton Abbey" and "Game of Thrones" and popular figures like Meghan Markle, Prince Harry and William and Kate, monarchy is more fashionable than it has been in some time. Coupled with democracy failing to deliver particularly qualified rulers in recent years, people are definitely more interested in the aristocracy, if for no other reason than it is a useful distraction from the flailing and shenanigans of the ridiculous people we've voted into high office.
Even so, most people don't necessarily know the ins and outs of aristocracy all that well. Do you know "your Grace" from "your Highness"? Could you define a courtesy title? What exactly is a GMCG, and could it really stand for "God Calls Me God"? Let's see if you know!