This is due to the fallout from Harry's tell-all memoir Spare, in which he referred to Camilla as a "villain" and "dangerous".
Princess Diana's ex-butler, Paul Burrell, commented on the matter, saying that Harry will have to face his family, including those he has criticized, and that bowing and kissing Camilla's hand will be a tough pill to swallow.
There are concerns that some may label the act as hypocritical given the insults Harry has hurled at Camilla.
There are speculations that Meghan Markle's husband will follow the royal tradition to preserve his royal title, despite the difficulties he may face.
On the other hand, Paul Burrell also took a jab at the Duchess of Sussex for not attending the historic event, claiming that her absence was due to the risk of her being booed or worse, and that her excuse of it being Archie's birthday was "pathetic".
Paul also claimed that Harry would be gathering anecdotes for his next attack on his family.
