This is all about to change, however. That's because the U-S-A! U-S-A! is coming, and what we don't know about high society, tasteful decorum, and royal protocol is enough to fill several royal advisers with the type of creeping existential dread rarely seen outside of an Ingmar Bergman movie.
Case in point, Markle's father was just revealed to have faked paparazzi shots of himself getting measured for his wedding suit, power walking on a hillside, looking up information about his daughter and future son-in-law on Wikipedia (this should've been the first clue that something was amiss), and reading a book on British history in his local Starbucks. After the controversy broke, he apologized and claimed that he did it to rehabilitate his image after he was caught by actual-real paparazzi buying a late-night six-pack from a convenience store whilst looking slightly disheveled -- despite the fact that "slightly disheveled" is pretty much the official uniform of buying a late-night six-pack.
In a final act of contrition, he then pulled out of the wedding (and walking his daughter down the aisle) after expressing concerns that his presence as a disgraced book-reader and clothes-wearer would draw attention away from the world's most famous family and their wealth of celebrity friends ... at which point Meghan's half-sister embarked on a media tour to claim that the photos were all her idea, and afterwards recording a video telling Meghan not to try to "censor" her.